forked from Minki/linux
93fa58cb83
OVERVIEW V9FS is a distributed file system for Linux which provides an implementation of the Plan 9 resource sharing protocol 9P. It can be used to share all sorts of resources: static files, synthetic file servers (such as /proc or /sys), devices, and application file servers (such as FUSE). BACKGROUND Plan 9 (http://plan9.bell-labs.com/plan9) is a research operating system and associated applications suite developed by the Computing Science Research Center of AT&T Bell Laboratories (now a part of Lucent Technologies), the same group that developed UNIX , C, and C++. Plan 9 was initially released in 1993 to universities, and then made generally available in 1995. Its core operating systems code laid the foundation for the Inferno Operating System released as a product by Lucent Bell-Labs in 1997. The Inferno venture was the only commercial embodiment of Plan 9 and is currently maintained as a product by Vita Nuova (http://www.vitanuova.com). After updated releases in 2000 and 2002, Plan 9 was open-sourced under the OSI approved Lucent Public License in 2003. The Plan 9 project was started by Ken Thompson and Rob Pike in 1985. Their intent was to explore potential solutions to some of the shortcomings of UNIX in the face of the widespread use of high-speed networks to connect machines. In UNIX, networking was an afterthought and UNIX clusters became little more than a network of stand-alone systems. Plan 9 was designed from first principles as a seamless distributed system with integrated secure network resource sharing. Applications and services were architected in such a way as to allow for implicit distribution across a cluster of systems. Configuring an environment to use remote application components or services in place of their local equivalent could be achieved with a few simple command line instructions. For the most part, application implementations operated independent of the location of their actual resources. Commercial operating systems haven't changed much in the 20 years since Plan 9 was conceived. Network and distributed systems support is provided by a patchwork of middle-ware, with an endless number of packages supplying pieces of the puzzle. Matters are complicated by the use of different complicated protocols for individual services, and separate implementations for kernel and application resources. The V9FS project (http://v9fs.sourceforge.net) is an attempt to bring Plan 9's unified approach to resource sharing to Linux and other operating systems via support for the 9P2000 resource sharing protocol. V9FS HISTORY V9FS was originally developed by Ron Minnich and Maya Gokhale at Los Alamos National Labs (LANL) in 1997. In November of 2001, Greg Watson setup a SourceForge project as a public repository for the code which supported the Linux 2.4 kernel. About a year ago, I picked up the initial attempt Ron Minnich had made to provide 2.6 support and got the code integrated into a 2.6.5 kernel. I then went through a line-for-line re-write attempting to clean-up the code while more closely following the Linux Kernel style guidelines. I co-authored a paper with Ron Minnich on the V9FS Linux support including performance comparisons to NFSv3 using Bonnie and PostMark - this paper appeared at the USENIX/FREENIX 2005 conference in April 2005: ( http://www.usenix.org/events/usenix05/tech/freenix/hensbergen.html ). CALL FOR PARTICIPATION/REQUEST FOR COMMENTS Our 2.6 kernel support is stabilizing and we'd like to begin pursuing its integration into the official kernel tree. We would appreciate any review, comments, critiques, and additions from this community and are actively seeking people to join our project and help us produce something that would be acceptable and useful to the Linux community. STATUS The code is reasonably stable, although there are no doubt corner cases our regression tests haven't discovered yet. It is in regular use by several of the developers and has been tested on x86 and PowerPC (32-bit and 64-bit) in both small and large (LANL cluster) deployments. Our current regression tests include fsx, bonnie, and postmark. It was our intention to keep things as simple as possible for this release -- trying to focus on correctness within the core of the protocol support versus a rich set of features. For example: a more complete security model and cache layer are in the road map, but excluded from this release. Additionally, we have removed support for mmap operations at Al Viro's request. PERFORMANCE Detailed performance numbers and analysis are included in the FREENIX paper, but we show comparable performance to NFSv3 for large file operations based on the Bonnie benchmark, and superior performance for many small file operations based on the PostMark benchmark. Somewhat preliminary graphs (from the FREENIX paper) are available (http://v9fs.sourceforge.net/perf/index.html). RESOURCES The source code is available in a few different forms: tarballs: http://v9fs.sf.net CVSweb: http://cvs.sourceforge.net/viewcvs.py/v9fs/linux-9p/ CVS: :pserver:anonymous@cvs.sourceforge.net:/cvsroot/v9fs/linux-9p Git: rsync://v9fs.graverobber.org/v9fs (webgit: http://v9fs.graverobber.org) 9P: tcp!v9fs.graverobber.org!6564 The user-level server is available from either the Plan 9 distribution or from http://v9fs.sf.net Other support applications are still being developed, but preliminary version can be downloaded from sourceforge. Documentation on the protocol has historically been the Plan 9 Man pages (http://plan9.bell-labs.com/sys/man/5/INDEX.html), but there is an effort under way to write a more complete Internet-Draft style specification (http://v9fs.sf.net/rfc). There are a couple of mailing lists supporting v9fs, but the most used is v9fs-developer@lists.sourceforge.net -- please direct/cc your comments there so the other v9fs contibutors can participate in the conversation. There is also an IRC channel: irc://freenode.net/#v9fs This part of the patch contains Documentation, Makefiles, and configuration file changes. Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
1729 lines
63 KiB
Plaintext
1729 lines
63 KiB
Plaintext
#
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# File system configuration
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#
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menu "File systems"
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config EXT2_FS
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tristate "Second extended fs support"
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help
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Ext2 is a standard Linux file system for hard disks.
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To compile this file system support as a module, choose M here: the
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module will be called ext2. Be aware however that the file system
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of your root partition (the one containing the directory /) cannot
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be compiled as a module, and so this could be dangerous.
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If unsure, say Y.
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config EXT2_FS_XATTR
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bool "Ext2 extended attributes"
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depends on EXT2_FS
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help
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Extended attributes are name:value pairs associated with inodes by
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the kernel or by users (see the attr(5) manual page, or visit
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<http://acl.bestbits.at/> for details).
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If unsure, say N.
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config EXT2_FS_POSIX_ACL
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bool "Ext2 POSIX Access Control Lists"
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depends on EXT2_FS_XATTR
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select FS_POSIX_ACL
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help
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Posix Access Control Lists (ACLs) support permissions for users and
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groups beyond the owner/group/world scheme.
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To learn more about Access Control Lists, visit the Posix ACLs for
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Linux website <http://acl.bestbits.at/>.
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If you don't know what Access Control Lists are, say N
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config EXT2_FS_SECURITY
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bool "Ext2 Security Labels"
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depends on EXT2_FS_XATTR
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help
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Security labels support alternative access control models
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implemented by security modules like SELinux. This option
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enables an extended attribute handler for file security
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labels in the ext2 filesystem.
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If you are not using a security module that requires using
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extended attributes for file security labels, say N.
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config EXT2_FS_XIP
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bool "Ext2 execute in place support"
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depends on EXT2_FS
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help
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Execute in place can be used on memory-backed block devices. If you
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enable this option, you can select to mount block devices which are
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capable of this feature without using the page cache.
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If you do not use a block device that is capable of using this,
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or if unsure, say N.
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config FS_XIP
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# execute in place
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bool
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depends on EXT2_FS_XIP
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default y
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config EXT3_FS
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tristate "Ext3 journalling file system support"
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help
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This is the journaling version of the Second extended file system
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(often called ext3), the de facto standard Linux file system
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(method to organize files on a storage device) for hard disks.
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The journaling code included in this driver means you do not have
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to run e2fsck (file system checker) on your file systems after a
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crash. The journal keeps track of any changes that were being made
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at the time the system crashed, and can ensure that your file system
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is consistent without the need for a lengthy check.
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Other than adding the journal to the file system, the on-disk format
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of ext3 is identical to ext2. It is possible to freely switch
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between using the ext3 driver and the ext2 driver, as long as the
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file system has been cleanly unmounted, or e2fsck is run on the file
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system.
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To add a journal on an existing ext2 file system or change the
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behavior of ext3 file systems, you can use the tune2fs utility ("man
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tune2fs"). To modify attributes of files and directories on ext3
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file systems, use chattr ("man chattr"). You need to be using
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e2fsprogs version 1.20 or later in order to create ext3 journals
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(available at <http://sourceforge.net/projects/e2fsprogs/>).
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To compile this file system support as a module, choose M here: the
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module will be called ext3. Be aware however that the file system
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of your root partition (the one containing the directory /) cannot
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be compiled as a module, and so this may be dangerous.
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config EXT3_FS_XATTR
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bool "Ext3 extended attributes"
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depends on EXT3_FS
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default y
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help
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Extended attributes are name:value pairs associated with inodes by
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the kernel or by users (see the attr(5) manual page, or visit
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<http://acl.bestbits.at/> for details).
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If unsure, say N.
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You need this for POSIX ACL support on ext3.
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config EXT3_FS_POSIX_ACL
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bool "Ext3 POSIX Access Control Lists"
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depends on EXT3_FS_XATTR
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select FS_POSIX_ACL
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help
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Posix Access Control Lists (ACLs) support permissions for users and
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groups beyond the owner/group/world scheme.
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To learn more about Access Control Lists, visit the Posix ACLs for
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Linux website <http://acl.bestbits.at/>.
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If you don't know what Access Control Lists are, say N
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config EXT3_FS_SECURITY
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bool "Ext3 Security Labels"
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depends on EXT3_FS_XATTR
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help
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Security labels support alternative access control models
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implemented by security modules like SELinux. This option
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enables an extended attribute handler for file security
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labels in the ext3 filesystem.
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If you are not using a security module that requires using
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extended attributes for file security labels, say N.
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config JBD
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# CONFIG_JBD could be its own option (even modular), but until there are
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# other users than ext3, we will simply make it be the same as CONFIG_EXT3_FS
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# dep_tristate ' Journal Block Device support (JBD for ext3)' CONFIG_JBD $CONFIG_EXT3_FS
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tristate
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default EXT3_FS
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help
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This is a generic journaling layer for block devices. It is
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currently used by the ext3 file system, but it could also be used to
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add journal support to other file systems or block devices such as
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RAID or LVM.
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If you are using the ext3 file system, you need to say Y here. If
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you are not using ext3 then you will probably want to say N.
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To compile this device as a module, choose M here: the module will be
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called jbd. If you are compiling ext3 into the kernel, you cannot
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compile this code as a module.
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config JBD_DEBUG
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bool "JBD (ext3) debugging support"
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depends on JBD
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help
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If you are using the ext3 journaled file system (or potentially any
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other file system/device using JBD), this option allows you to
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enable debugging output while the system is running, in order to
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help track down any problems you are having. By default the
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debugging output will be turned off.
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If you select Y here, then you will be able to turn on debugging
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with "echo N > /proc/sys/fs/jbd-debug", where N is a number between
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1 and 5, the higher the number, the more debugging output is
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generated. To turn debugging off again, do
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"echo 0 > /proc/sys/fs/jbd-debug".
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config FS_MBCACHE
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# Meta block cache for Extended Attributes (ext2/ext3)
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tristate
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depends on EXT2_FS_XATTR || EXT3_FS_XATTR
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default y if EXT2_FS=y || EXT3_FS=y
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default m if EXT2_FS=m || EXT3_FS=m
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config REISERFS_FS
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tristate "Reiserfs support"
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help
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Stores not just filenames but the files themselves in a balanced
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tree. Uses journaling.
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Balanced trees are more efficient than traditional file system
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architectural foundations.
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In general, ReiserFS is as fast as ext2, but is very efficient with
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large directories and small files. Additional patches are needed
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for NFS and quotas, please see <http://www.namesys.com/> for links.
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It is more easily extended to have features currently found in
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database and keyword search systems than block allocation based file
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systems are. The next version will be so extended, and will support
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plugins consistent with our motto ``It takes more than a license to
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make source code open.''
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Read <http://www.namesys.com/> to learn more about reiserfs.
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Sponsored by Threshold Networks, Emusic.com, and Bigstorage.com.
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If you like it, you can pay us to add new features to it that you
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need, buy a support contract, or pay us to port it to another OS.
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config REISERFS_CHECK
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bool "Enable reiserfs debug mode"
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depends on REISERFS_FS
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help
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If you set this to Y, then ReiserFS will perform every check it can
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possibly imagine of its internal consistency throughout its
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operation. It will also go substantially slower. More than once we
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have forgotten that this was on, and then gone despondent over the
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latest benchmarks.:-) Use of this option allows our team to go all
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out in checking for consistency when debugging without fear of its
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effect on end users. If you are on the verge of sending in a bug
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report, say Y and you might get a useful error message. Almost
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everyone should say N.
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config REISERFS_PROC_INFO
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bool "Stats in /proc/fs/reiserfs"
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depends on REISERFS_FS
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help
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Create under /proc/fs/reiserfs a hierarchy of files, displaying
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various ReiserFS statistics and internal data at the expense of
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making your kernel or module slightly larger (+8 KB). This also
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increases the amount of kernel memory required for each mount.
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Almost everyone but ReiserFS developers and people fine-tuning
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reiserfs or tracing problems should say N.
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config REISERFS_FS_XATTR
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bool "ReiserFS extended attributes"
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depends on REISERFS_FS
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help
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Extended attributes are name:value pairs associated with inodes by
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the kernel or by users (see the attr(5) manual page, or visit
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<http://acl.bestbits.at/> for details).
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If unsure, say N.
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config REISERFS_FS_POSIX_ACL
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bool "ReiserFS POSIX Access Control Lists"
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depends on REISERFS_FS_XATTR
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select FS_POSIX_ACL
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help
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Posix Access Control Lists (ACLs) support permissions for users and
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groups beyond the owner/group/world scheme.
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To learn more about Access Control Lists, visit the Posix ACLs for
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Linux website <http://acl.bestbits.at/>.
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If you don't know what Access Control Lists are, say N
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config REISERFS_FS_SECURITY
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bool "ReiserFS Security Labels"
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depends on REISERFS_FS_XATTR
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help
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Security labels support alternative access control models
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implemented by security modules like SELinux. This option
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enables an extended attribute handler for file security
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labels in the ReiserFS filesystem.
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If you are not using a security module that requires using
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extended attributes for file security labels, say N.
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config JFS_FS
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tristate "JFS filesystem support"
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select NLS
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help
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This is a port of IBM's Journaled Filesystem . More information is
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available in the file <file:Documentation/filesystems/jfs.txt>.
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If you do not intend to use the JFS filesystem, say N.
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config JFS_POSIX_ACL
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bool "JFS POSIX Access Control Lists"
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depends on JFS_FS
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select FS_POSIX_ACL
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help
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Posix Access Control Lists (ACLs) support permissions for users and
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groups beyond the owner/group/world scheme.
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To learn more about Access Control Lists, visit the Posix ACLs for
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Linux website <http://acl.bestbits.at/>.
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If you don't know what Access Control Lists are, say N
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config JFS_SECURITY
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bool "JFS Security Labels"
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depends on JFS_FS
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help
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Security labels support alternative access control models
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implemented by security modules like SELinux. This option
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enables an extended attribute handler for file security
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labels in the jfs filesystem.
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If you are not using a security module that requires using
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extended attributes for file security labels, say N.
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config JFS_DEBUG
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bool "JFS debugging"
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depends on JFS_FS
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help
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If you are experiencing any problems with the JFS filesystem, say
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Y here. This will result in additional debugging messages to be
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written to the system log. Under normal circumstances, this
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results in very little overhead.
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config JFS_STATISTICS
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bool "JFS statistics"
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depends on JFS_FS
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help
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Enabling this option will cause statistics from the JFS file system
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to be made available to the user in the /proc/fs/jfs/ directory.
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config FS_POSIX_ACL
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# Posix ACL utility routines (for now, only ext2/ext3/jfs/reiserfs)
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#
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# NOTE: you can implement Posix ACLs without these helpers (XFS does).
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# Never use this symbol for ifdefs.
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#
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bool
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default n
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source "fs/xfs/Kconfig"
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config MINIX_FS
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tristate "Minix fs support"
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help
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Minix is a simple operating system used in many classes about OS's.
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The minix file system (method to organize files on a hard disk
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partition or a floppy disk) was the original file system for Linux,
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but has been superseded by the second extended file system ext2fs.
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You don't want to use the minix file system on your hard disk
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because of certain built-in restrictions, but it is sometimes found
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on older Linux floppy disks. This option will enlarge your kernel
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by about 28 KB. If unsure, say N.
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To compile this file system support as a module, choose M here: the
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module will be called minix. Note that the file system of your root
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partition (the one containing the directory /) cannot be compiled as
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a module.
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config ROMFS_FS
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tristate "ROM file system support"
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---help---
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This is a very small read-only file system mainly intended for
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initial ram disks of installation disks, but it could be used for
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other read-only media as well. Read
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<file:Documentation/filesystems/romfs.txt> for details.
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To compile this file system support as a module, choose M here: the
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module will be called romfs. Note that the file system of your
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root partition (the one containing the directory /) cannot be a
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module.
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If you don't know whether you need it, then you don't need it:
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answer N.
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config INOTIFY
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bool "Inotify file change notification support"
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default y
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---help---
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Say Y here to enable inotify support and the associated system
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calls. Inotify is a file change notification system and a
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replacement for dnotify. Inotify fixes numerous shortcomings in
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dnotify and introduces several new features. It allows monitoring
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of both files and directories via a single open fd. Other features
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include multiple file events, one-shot support, and unmount
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notification.
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For more information, see Documentation/filesystems/inotify.txt
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If unsure, say Y.
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config QUOTA
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bool "Quota support"
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help
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If you say Y here, you will be able to set per user limits for disk
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usage (also called disk quotas). Currently, it works for the
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ext2, ext3, and reiserfs file system. ext3 also supports journalled
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quotas for which you don't need to run quotacheck(8) after an unclean
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shutdown.
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For further details, read the Quota mini-HOWTO, available from
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<http://www.tldp.org/docs.html#howto>, or the documentation provided
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with the quota tools. Probably the quota support is only useful for
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multi user systems. If unsure, say N.
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config QFMT_V1
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tristate "Old quota format support"
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depends on QUOTA
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help
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This quota format was (is) used by kernels earlier than 2.4.22. If
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you have quota working and you don't want to convert to new quota
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format say Y here.
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config QFMT_V2
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tristate "Quota format v2 support"
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depends on QUOTA
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help
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This quota format allows using quotas with 32-bit UIDs/GIDs. If you
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need this functionality say Y here.
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config QUOTACTL
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bool
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depends on XFS_QUOTA || QUOTA
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default y
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config DNOTIFY
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bool "Dnotify support" if EMBEDDED
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default y
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help
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Dnotify is a directory-based per-fd file change notification system
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that uses signals to communicate events to user-space. There exist
|
|
superior alternatives, but some applications may still rely on
|
|
dnotify.
|
|
|
|
Because of this, if unsure, say Y.
|
|
|
|
config AUTOFS_FS
|
|
tristate "Kernel automounter support"
|
|
help
|
|
The automounter is a tool to automatically mount remote file systems
|
|
on demand. This implementation is partially kernel-based to reduce
|
|
overhead in the already-mounted case; this is unlike the BSD
|
|
automounter (amd), which is a pure user space daemon.
|
|
|
|
To use the automounter you need the user-space tools from the autofs
|
|
package; you can find the location in <file:Documentation/Changes>.
|
|
You also want to answer Y to "NFS file system support", below.
|
|
|
|
If you want to use the newer version of the automounter with more
|
|
features, say N here and say Y to "Kernel automounter v4 support",
|
|
below.
|
|
|
|
To compile this support as a module, choose M here: the module will be
|
|
called autofs.
|
|
|
|
If you are not a part of a fairly large, distributed network, you
|
|
probably do not need an automounter, and can say N here.
|
|
|
|
config AUTOFS4_FS
|
|
tristate "Kernel automounter version 4 support (also supports v3)"
|
|
help
|
|
The automounter is a tool to automatically mount remote file systems
|
|
on demand. This implementation is partially kernel-based to reduce
|
|
overhead in the already-mounted case; this is unlike the BSD
|
|
automounter (amd), which is a pure user space daemon.
|
|
|
|
To use the automounter you need the user-space tools from
|
|
<ftp://ftp.kernel.org/pub/linux/daemons/autofs/v4/>; you also
|
|
want to answer Y to "NFS file system support", below.
|
|
|
|
To compile this support as a module, choose M here: the module will be
|
|
called autofs4. You will need to add "alias autofs autofs4" to your
|
|
modules configuration file.
|
|
|
|
If you are not a part of a fairly large, distributed network or
|
|
don't have a laptop which needs to dynamically reconfigure to the
|
|
local network, you probably do not need an automounter, and can say
|
|
N here.
|
|
|
|
menu "CD-ROM/DVD Filesystems"
|
|
|
|
config ISO9660_FS
|
|
tristate "ISO 9660 CDROM file system support"
|
|
help
|
|
This is the standard file system used on CD-ROMs. It was previously
|
|
known as "High Sierra File System" and is called "hsfs" on other
|
|
Unix systems. The so-called Rock-Ridge extensions which allow for
|
|
long Unix filenames and symbolic links are also supported by this
|
|
driver. If you have a CD-ROM drive and want to do more with it than
|
|
just listen to audio CDs and watch its LEDs, say Y (and read
|
|
<file:Documentation/filesystems/isofs.txt> and the CD-ROM-HOWTO,
|
|
available from <http://www.tldp.org/docs.html#howto>), thereby
|
|
enlarging your kernel by about 27 KB; otherwise say N.
|
|
|
|
To compile this file system support as a module, choose M here: the
|
|
module will be called isofs.
|
|
|
|
config JOLIET
|
|
bool "Microsoft Joliet CDROM extensions"
|
|
depends on ISO9660_FS
|
|
select NLS
|
|
help
|
|
Joliet is a Microsoft extension for the ISO 9660 CD-ROM file system
|
|
which allows for long filenames in unicode format (unicode is the
|
|
new 16 bit character code, successor to ASCII, which encodes the
|
|
characters of almost all languages of the world; see
|
|
<http://www.unicode.org/> for more information). Say Y here if you
|
|
want to be able to read Joliet CD-ROMs under Linux.
|
|
|
|
config ZISOFS
|
|
bool "Transparent decompression extension"
|
|
depends on ISO9660_FS
|
|
select ZLIB_INFLATE
|
|
help
|
|
This is a Linux-specific extension to RockRidge which lets you store
|
|
data in compressed form on a CD-ROM and have it transparently
|
|
decompressed when the CD-ROM is accessed. See
|
|
<http://www.kernel.org/pub/linux/utils/fs/zisofs/> for the tools
|
|
necessary to create such a filesystem. Say Y here if you want to be
|
|
able to read such compressed CD-ROMs.
|
|
|
|
config ZISOFS_FS
|
|
# for fs/nls/Config.in
|
|
tristate
|
|
depends on ZISOFS
|
|
default ISO9660_FS
|
|
|
|
config UDF_FS
|
|
tristate "UDF file system support"
|
|
help
|
|
This is the new file system used on some CD-ROMs and DVDs. Say Y if
|
|
you intend to mount DVD discs or CDRW's written in packet mode, or
|
|
if written to by other UDF utilities, such as DirectCD.
|
|
Please read <file:Documentation/filesystems/udf.txt>.
|
|
|
|
To compile this file system support as a module, choose M here: the
|
|
module will be called udf.
|
|
|
|
If unsure, say N.
|
|
|
|
config UDF_NLS
|
|
bool
|
|
default y
|
|
depends on (UDF_FS=m && NLS) || (UDF_FS=y && NLS=y)
|
|
|
|
endmenu
|
|
|
|
menu "DOS/FAT/NT Filesystems"
|
|
|
|
config FAT_FS
|
|
tristate
|
|
select NLS
|
|
help
|
|
If you want to use one of the FAT-based file systems (the MS-DOS and
|
|
VFAT (Windows 95) file systems), then you must say Y or M here
|
|
to include FAT support. You will then be able to mount partitions or
|
|
diskettes with FAT-based file systems and transparently access the
|
|
files on them, i.e. MSDOS files will look and behave just like all
|
|
other Unix files.
|
|
|
|
This FAT support is not a file system in itself, it only provides
|
|
the foundation for the other file systems. You will have to say Y or
|
|
M to at least one of "MSDOS fs support" or "VFAT fs support" in
|
|
order to make use of it.
|
|
|
|
Another way to read and write MSDOS floppies and hard drive
|
|
partitions from within Linux (but not transparently) is with the
|
|
mtools ("man mtools") program suite. You don't need to say Y here in
|
|
order to do that.
|
|
|
|
If you need to move large files on floppies between a DOS and a
|
|
Linux box, say Y here, mount the floppy under Linux with an MSDOS
|
|
file system and use GNU tar's M option. GNU tar is a program
|
|
available for Unix and DOS ("man tar" or "info tar").
|
|
|
|
It is now also becoming possible to read and write compressed FAT
|
|
file systems; read <file:Documentation/filesystems/fat_cvf.txt> for
|
|
details.
|
|
|
|
The FAT support will enlarge your kernel by about 37 KB. If unsure,
|
|
say Y.
|
|
|
|
To compile this as a module, choose M here: the module will be called
|
|
fat. Note that if you compile the FAT support as a module, you
|
|
cannot compile any of the FAT-based file systems into the kernel
|
|
-- they will have to be modules as well.
|
|
|
|
config MSDOS_FS
|
|
tristate "MSDOS fs support"
|
|
select FAT_FS
|
|
help
|
|
This allows you to mount MSDOS partitions of your hard drive (unless
|
|
they are compressed; to access compressed MSDOS partitions under
|
|
Linux, you can either use the DOS emulator DOSEMU, described in the
|
|
DOSEMU-HOWTO, available from
|
|
<http://www.tldp.org/docs.html#howto>, or try dmsdosfs in
|
|
<ftp://ibiblio.org/pub/Linux/system/filesystems/dosfs/>. If you
|
|
intend to use dosemu with a non-compressed MSDOS partition, say Y
|
|
here) and MSDOS floppies. This means that file access becomes
|
|
transparent, i.e. the MSDOS files look and behave just like all
|
|
other Unix files.
|
|
|
|
If you have Windows 95 or Windows NT installed on your MSDOS
|
|
partitions, you should use the VFAT file system (say Y to "VFAT fs
|
|
support" below), or you will not be able to see the long filenames
|
|
generated by Windows 95 / Windows NT.
|
|
|
|
This option will enlarge your kernel by about 7 KB. If unsure,
|
|
answer Y. This will only work if you said Y to "DOS FAT fs support"
|
|
as well. To compile this as a module, choose M here: the module will
|
|
be called msdos.
|
|
|
|
config VFAT_FS
|
|
tristate "VFAT (Windows-95) fs support"
|
|
select FAT_FS
|
|
help
|
|
This option provides support for normal Windows file systems with
|
|
long filenames. That includes non-compressed FAT-based file systems
|
|
used by Windows 95, Windows 98, Windows NT 4.0, and the Unix
|
|
programs from the mtools package.
|
|
|
|
The VFAT support enlarges your kernel by about 10 KB and it only
|
|
works if you said Y to the "DOS FAT fs support" above. Please read
|
|
the file <file:Documentation/filesystems/vfat.txt> for details. If
|
|
unsure, say Y.
|
|
|
|
To compile this as a module, choose M here: the module will be called
|
|
vfat.
|
|
|
|
config FAT_DEFAULT_CODEPAGE
|
|
int "Default codepage for FAT"
|
|
depends on MSDOS_FS || VFAT_FS
|
|
default 437
|
|
help
|
|
This option should be set to the codepage of your FAT filesystems.
|
|
It can be overridden with the "codepage" mount option.
|
|
See <file:Documentation/filesystems/vfat.txt> for more information.
|
|
|
|
config FAT_DEFAULT_IOCHARSET
|
|
string "Default iocharset for FAT"
|
|
depends on VFAT_FS
|
|
default "iso8859-1"
|
|
help
|
|
Set this to the default input/output character set you'd
|
|
like FAT to use. It should probably match the character set
|
|
that most of your FAT filesystems use, and can be overridden
|
|
with the "iocharset" mount option for FAT filesystems.
|
|
Note that "utf8" is not recommended for FAT filesystems.
|
|
If unsure, you shouldn't set "utf8" here.
|
|
See <file:Documentation/filesystems/vfat.txt> for more information.
|
|
|
|
config NTFS_FS
|
|
tristate "NTFS file system support"
|
|
select NLS
|
|
help
|
|
NTFS is the file system of Microsoft Windows NT, 2000, XP and 2003.
|
|
|
|
Saying Y or M here enables read support. There is partial, but
|
|
safe, write support available. For write support you must also
|
|
say Y to "NTFS write support" below.
|
|
|
|
There are also a number of user-space tools available, called
|
|
ntfsprogs. These include ntfsundelete and ntfsresize, that work
|
|
without NTFS support enabled in the kernel.
|
|
|
|
This is a rewrite from scratch of Linux NTFS support and replaced
|
|
the old NTFS code starting with Linux 2.5.11. A backport to
|
|
the Linux 2.4 kernel series is separately available as a patch
|
|
from the project web site.
|
|
|
|
For more information see <file:Documentation/filesystems/ntfs.txt>
|
|
and <http://linux-ntfs.sourceforge.net/>.
|
|
|
|
To compile this file system support as a module, choose M here: the
|
|
module will be called ntfs.
|
|
|
|
If you are not using Windows NT, 2000, XP or 2003 in addition to
|
|
Linux on your computer it is safe to say N.
|
|
|
|
config NTFS_DEBUG
|
|
bool "NTFS debugging support"
|
|
depends on NTFS_FS
|
|
help
|
|
If you are experiencing any problems with the NTFS file system, say
|
|
Y here. This will result in additional consistency checks to be
|
|
performed by the driver as well as additional debugging messages to
|
|
be written to the system log. Note that debugging messages are
|
|
disabled by default. To enable them, supply the option debug_msgs=1
|
|
at the kernel command line when booting the kernel or as an option
|
|
to insmod when loading the ntfs module. Once the driver is active,
|
|
you can enable debugging messages by doing (as root):
|
|
echo 1 > /proc/sys/fs/ntfs-debug
|
|
Replacing the "1" with "0" would disable debug messages.
|
|
|
|
If you leave debugging messages disabled, this results in little
|
|
overhead, but enabling debug messages results in very significant
|
|
slowdown of the system.
|
|
|
|
When reporting bugs, please try to have available a full dump of
|
|
debugging messages while the misbehaviour was occurring.
|
|
|
|
config NTFS_RW
|
|
bool "NTFS write support"
|
|
depends on NTFS_FS
|
|
help
|
|
This enables the partial, but safe, write support in the NTFS driver.
|
|
|
|
The only supported operation is overwriting existing files, without
|
|
changing the file length. No file or directory creation, deletion or
|
|
renaming is possible. Note only non-resident files can be written to
|
|
so you may find that some very small files (<500 bytes or so) cannot
|
|
be written to.
|
|
|
|
While we cannot guarantee that it will not damage any data, we have
|
|
so far not received a single report where the driver would have
|
|
damaged someones data so we assume it is perfectly safe to use.
|
|
|
|
Note: While write support is safe in this version (a rewrite from
|
|
scratch of the NTFS support), it should be noted that the old NTFS
|
|
write support, included in Linux 2.5.10 and before (since 1997),
|
|
is not safe.
|
|
|
|
This is currently useful with TopologiLinux. TopologiLinux is run
|
|
on top of any DOS/Microsoft Windows system without partitioning your
|
|
hard disk. Unlike other Linux distributions TopologiLinux does not
|
|
need its own partition. For more information see
|
|
<http://topologi-linux.sourceforge.net/>
|
|
|
|
It is perfectly safe to say N here.
|
|
|
|
endmenu
|
|
|
|
menu "Pseudo filesystems"
|
|
|
|
config PROC_FS
|
|
bool "/proc file system support"
|
|
help
|
|
This is a virtual file system providing information about the status
|
|
of the system. "Virtual" means that it doesn't take up any space on
|
|
your hard disk: the files are created on the fly by the kernel when
|
|
you try to access them. Also, you cannot read the files with older
|
|
version of the program less: you need to use more or cat.
|
|
|
|
It's totally cool; for example, "cat /proc/interrupts" gives
|
|
information about what the different IRQs are used for at the moment
|
|
(there is a small number of Interrupt ReQuest lines in your computer
|
|
that are used by the attached devices to gain the CPU's attention --
|
|
often a source of trouble if two devices are mistakenly configured
|
|
to use the same IRQ). The program procinfo to display some
|
|
information about your system gathered from the /proc file system.
|
|
|
|
Before you can use the /proc file system, it has to be mounted,
|
|
meaning it has to be given a location in the directory hierarchy.
|
|
That location should be /proc. A command such as "mount -t proc proc
|
|
/proc" or the equivalent line in /etc/fstab does the job.
|
|
|
|
The /proc file system is explained in the file
|
|
<file:Documentation/filesystems/proc.txt> and on the proc(5) manpage
|
|
("man 5 proc").
|
|
|
|
This option will enlarge your kernel by about 67 KB. Several
|
|
programs depend on this, so everyone should say Y here.
|
|
|
|
config PROC_KCORE
|
|
bool "/proc/kcore support" if !ARM
|
|
depends on PROC_FS && MMU
|
|
|
|
config PROC_VMCORE
|
|
bool "/proc/vmcore support (EXPERIMENTAL)"
|
|
depends on PROC_FS && EMBEDDED && EXPERIMENTAL && CRASH_DUMP
|
|
help
|
|
Exports the dump image of crashed kernel in ELF format.
|
|
|
|
config SYSFS
|
|
bool "sysfs file system support" if EMBEDDED
|
|
default y
|
|
help
|
|
The sysfs filesystem is a virtual filesystem that the kernel uses to
|
|
export internal kernel objects, their attributes, and their
|
|
relationships to one another.
|
|
|
|
Users can use sysfs to ascertain useful information about the running
|
|
kernel, such as the devices the kernel has discovered on each bus and
|
|
which driver each is bound to. sysfs can also be used to tune devices
|
|
and other kernel subsystems.
|
|
|
|
Some system agents rely on the information in sysfs to operate.
|
|
/sbin/hotplug uses device and object attributes in sysfs to assist in
|
|
delegating policy decisions, like persistantly naming devices.
|
|
|
|
sysfs is currently used by the block subsystem to mount the root
|
|
partition. If sysfs is disabled you must specify the boot device on
|
|
the kernel boot command line via its major and minor numbers. For
|
|
example, "root=03:01" for /dev/hda1.
|
|
|
|
Designers of embedded systems may wish to say N here to conserve space.
|
|
|
|
config TMPFS
|
|
bool "Virtual memory file system support (former shm fs)"
|
|
help
|
|
Tmpfs is a file system which keeps all files in virtual memory.
|
|
|
|
Everything in tmpfs is temporary in the sense that no files will be
|
|
created on your hard drive. The files live in memory and swap
|
|
space. If you unmount a tmpfs instance, everything stored therein is
|
|
lost.
|
|
|
|
See <file:Documentation/filesystems/tmpfs.txt> for details.
|
|
|
|
config HUGETLBFS
|
|
bool "HugeTLB file system support"
|
|
depends X86 || IA64 || PPC64 || SPARC64 || SUPERH || X86_64 || BROKEN
|
|
|
|
config HUGETLB_PAGE
|
|
def_bool HUGETLBFS
|
|
|
|
config RAMFS
|
|
bool
|
|
default y
|
|
---help---
|
|
Ramfs is a file system which keeps all files in RAM. It allows
|
|
read and write access.
|
|
|
|
It is more of an programming example than a useable file system. If
|
|
you need a file system which lives in RAM with limit checking use
|
|
tmpfs.
|
|
|
|
To compile this as a module, choose M here: the module will be called
|
|
ramfs.
|
|
|
|
config RELAYFS_FS
|
|
tristate "Relayfs file system support"
|
|
---help---
|
|
Relayfs is a high-speed data relay filesystem designed to provide
|
|
an efficient mechanism for tools and facilities to relay large
|
|
amounts of data from kernel space to user space.
|
|
|
|
To compile this code as a module, choose M here: the module will be
|
|
called relayfs.
|
|
|
|
If unsure, say N.
|
|
|
|
endmenu
|
|
|
|
menu "Miscellaneous filesystems"
|
|
|
|
config ADFS_FS
|
|
tristate "ADFS file system support (EXPERIMENTAL)"
|
|
depends on EXPERIMENTAL
|
|
help
|
|
The Acorn Disc Filing System is the standard file system of the
|
|
RiscOS operating system which runs on Acorn's ARM-based Risc PC
|
|
systems and the Acorn Archimedes range of machines. If you say Y
|
|
here, Linux will be able to read from ADFS partitions on hard drives
|
|
and from ADFS-formatted floppy discs. If you also want to be able to
|
|
write to those devices, say Y to "ADFS write support" below.
|
|
|
|
The ADFS partition should be the first partition (i.e.,
|
|
/dev/[hs]d?1) on each of your drives. Please read the file
|
|
<file:Documentation/filesystems/adfs.txt> for further details.
|
|
|
|
To compile this code as a module, choose M here: the module will be
|
|
called adfs.
|
|
|
|
If unsure, say N.
|
|
|
|
config ADFS_FS_RW
|
|
bool "ADFS write support (DANGEROUS)"
|
|
depends on ADFS_FS
|
|
help
|
|
If you say Y here, you will be able to write to ADFS partitions on
|
|
hard drives and ADFS-formatted floppy disks. This is experimental
|
|
codes, so if you're unsure, say N.
|
|
|
|
config AFFS_FS
|
|
tristate "Amiga FFS file system support (EXPERIMENTAL)"
|
|
depends on EXPERIMENTAL
|
|
help
|
|
The Fast File System (FFS) is the common file system used on hard
|
|
disks by Amiga(tm) systems since AmigaOS Version 1.3 (34.20). Say Y
|
|
if you want to be able to read and write files from and to an Amiga
|
|
FFS partition on your hard drive. Amiga floppies however cannot be
|
|
read with this driver due to an incompatibility of the floppy
|
|
controller used in an Amiga and the standard floppy controller in
|
|
PCs and workstations. Read <file:Documentation/filesystems/affs.txt>
|
|
and <file:fs/affs/Changes>.
|
|
|
|
With this driver you can also mount disk files used by Bernd
|
|
Schmidt's Un*X Amiga Emulator
|
|
(<http://www.freiburg.linux.de/~uae/>).
|
|
If you want to do this, you will also need to say Y or M to "Loop
|
|
device support", above.
|
|
|
|
To compile this file system support as a module, choose M here: the
|
|
module will be called affs. If unsure, say N.
|
|
|
|
config HFS_FS
|
|
tristate "Apple Macintosh file system support (EXPERIMENTAL)"
|
|
depends on EXPERIMENTAL
|
|
help
|
|
If you say Y here, you will be able to mount Macintosh-formatted
|
|
floppy disks and hard drive partitions with full read-write access.
|
|
Please read <file:fs/hfs/HFS.txt> to learn about the available mount
|
|
options.
|
|
|
|
To compile this file system support as a module, choose M here: the
|
|
module will be called hfs.
|
|
|
|
config HFSPLUS_FS
|
|
tristate "Apple Extended HFS file system support"
|
|
select NLS
|
|
select NLS_UTF8
|
|
help
|
|
If you say Y here, you will be able to mount extended format
|
|
Macintosh-formatted hard drive partitions with full read-write access.
|
|
|
|
This file system is often called HFS+ and was introduced with
|
|
MacOS 8. It includes all Mac specific filesystem data such as
|
|
data forks and creator codes, but it also has several UNIX
|
|
style features such as file ownership and permissions.
|
|
|
|
config BEFS_FS
|
|
tristate "BeOS file system (BeFS) support (read only) (EXPERIMENTAL)"
|
|
depends on EXPERIMENTAL
|
|
select NLS
|
|
help
|
|
The BeOS File System (BeFS) is the native file system of Be, Inc's
|
|
BeOS. Notable features include support for arbitrary attributes
|
|
on files and directories, and database-like indeces on selected
|
|
attributes. (Also note that this driver doesn't make those features
|
|
available at this time). It is a 64 bit filesystem, so it supports
|
|
extremly large volumes and files.
|
|
|
|
If you use this filesystem, you should also say Y to at least one
|
|
of the NLS (native language support) options below.
|
|
|
|
If you don't know what this is about, say N.
|
|
|
|
To compile this as a module, choose M here: the module will be
|
|
called befs.
|
|
|
|
config BEFS_DEBUG
|
|
bool "Debug BeFS"
|
|
depends on BEFS_FS
|
|
help
|
|
If you say Y here, you can use the 'debug' mount option to enable
|
|
debugging output from the driver.
|
|
|
|
config BFS_FS
|
|
tristate "BFS file system support (EXPERIMENTAL)"
|
|
depends on EXPERIMENTAL
|
|
help
|
|
Boot File System (BFS) is a file system used under SCO UnixWare to
|
|
allow the bootloader access to the kernel image and other important
|
|
files during the boot process. It is usually mounted under /stand
|
|
and corresponds to the slice marked as "STAND" in the UnixWare
|
|
partition. You should say Y if you want to read or write the files
|
|
on your /stand slice from within Linux. You then also need to say Y
|
|
to "UnixWare slices support", below. More information about the BFS
|
|
file system is contained in the file
|
|
<file:Documentation/filesystems/bfs.txt>.
|
|
|
|
If you don't know what this is about, say N.
|
|
|
|
To compile this as a module, choose M here: the module will be called
|
|
bfs. Note that the file system of your root partition (the one
|
|
containing the directory /) cannot be compiled as a module.
|
|
|
|
|
|
|
|
config EFS_FS
|
|
tristate "EFS file system support (read only) (EXPERIMENTAL)"
|
|
depends on EXPERIMENTAL
|
|
help
|
|
EFS is an older file system used for non-ISO9660 CD-ROMs and hard
|
|
disk partitions by SGI's IRIX operating system (IRIX 6.0 and newer
|
|
uses the XFS file system for hard disk partitions however).
|
|
|
|
This implementation only offers read-only access. If you don't know
|
|
what all this is about, it's safe to say N. For more information
|
|
about EFS see its home page at <http://aeschi.ch.eu.org/efs/>.
|
|
|
|
To compile the EFS file system support as a module, choose M here: the
|
|
module will be called efs.
|
|
|
|
config JFFS_FS
|
|
tristate "Journalling Flash File System (JFFS) support"
|
|
depends on MTD
|
|
help
|
|
JFFS is the Journaling Flash File System developed by Axis
|
|
Communications in Sweden, aimed at providing a crash/powerdown-safe
|
|
file system for disk-less embedded devices. Further information is
|
|
available at (<http://developer.axis.com/software/jffs/>).
|
|
|
|
config JFFS_FS_VERBOSE
|
|
int "JFFS debugging verbosity (0 = quiet, 3 = noisy)"
|
|
depends on JFFS_FS
|
|
default "0"
|
|
help
|
|
Determines the verbosity level of the JFFS debugging messages.
|
|
|
|
config JFFS_PROC_FS
|
|
bool "JFFS stats available in /proc filesystem"
|
|
depends on JFFS_FS && PROC_FS
|
|
help
|
|
Enabling this option will cause statistics from mounted JFFS file systems
|
|
to be made available to the user in the /proc/fs/jffs/ directory.
|
|
|
|
config JFFS2_FS
|
|
tristate "Journalling Flash File System v2 (JFFS2) support"
|
|
select CRC32
|
|
depends on MTD
|
|
help
|
|
JFFS2 is the second generation of the Journalling Flash File System
|
|
for use on diskless embedded devices. It provides improved wear
|
|
levelling, compression and support for hard links. You cannot use
|
|
this on normal block devices, only on 'MTD' devices.
|
|
|
|
Further information on the design and implementation of JFFS2 is
|
|
available at <http://sources.redhat.com/jffs2/>.
|
|
|
|
config JFFS2_FS_DEBUG
|
|
int "JFFS2 debugging verbosity (0 = quiet, 2 = noisy)"
|
|
depends on JFFS2_FS
|
|
default "0"
|
|
help
|
|
This controls the amount of debugging messages produced by the JFFS2
|
|
code. Set it to zero for use in production systems. For evaluation,
|
|
testing and debugging, it's advisable to set it to one. This will
|
|
enable a few assertions and will print debugging messages at the
|
|
KERN_DEBUG loglevel, where they won't normally be visible. Level 2
|
|
is unlikely to be useful - it enables extra debugging in certain
|
|
areas which at one point needed debugging, but when the bugs were
|
|
located and fixed, the detailed messages were relegated to level 2.
|
|
|
|
If reporting bugs, please try to have available a full dump of the
|
|
messages at debug level 1 while the misbehaviour was occurring.
|
|
|
|
config JFFS2_FS_WRITEBUFFER
|
|
bool "JFFS2 write-buffering support"
|
|
depends on JFFS2_FS
|
|
default y
|
|
help
|
|
This enables the write-buffering support in JFFS2.
|
|
|
|
This functionality is required to support JFFS2 on the following
|
|
types of flash devices:
|
|
- NAND flash
|
|
- NOR flash with transparent ECC
|
|
- DataFlash
|
|
|
|
config JFFS2_COMPRESSION_OPTIONS
|
|
bool "Advanced compression options for JFFS2"
|
|
depends on JFFS2_FS
|
|
default n
|
|
help
|
|
Enabling this option allows you to explicitly choose which
|
|
compression modules, if any, are enabled in JFFS2. Removing
|
|
compressors and mean you cannot read existing file systems,
|
|
and enabling experimental compressors can mean that you
|
|
write a file system which cannot be read by a standard kernel.
|
|
|
|
If unsure, you should _definitely_ say 'N'.
|
|
|
|
config JFFS2_ZLIB
|
|
bool "JFFS2 ZLIB compression support" if JFFS2_COMPRESSION_OPTIONS
|
|
select ZLIB_INFLATE
|
|
select ZLIB_DEFLATE
|
|
depends on JFFS2_FS
|
|
default y
|
|
help
|
|
Zlib is designed to be a free, general-purpose, legally unencumbered,
|
|
lossless data-compression library for use on virtually any computer
|
|
hardware and operating system. See <http://www.gzip.org/zlib/> for
|
|
further information.
|
|
|
|
Say 'Y' if unsure.
|
|
|
|
config JFFS2_RTIME
|
|
bool "JFFS2 RTIME compression support" if JFFS2_COMPRESSION_OPTIONS
|
|
depends on JFFS2_FS
|
|
default y
|
|
help
|
|
Rtime does manage to recompress already-compressed data. Say 'Y' if unsure.
|
|
|
|
config JFFS2_RUBIN
|
|
bool "JFFS2 RUBIN compression support" if JFFS2_COMPRESSION_OPTIONS
|
|
depends on JFFS2_FS
|
|
default n
|
|
help
|
|
RUBINMIPS and DYNRUBIN compressors. Say 'N' if unsure.
|
|
|
|
choice
|
|
prompt "JFFS2 default compression mode" if JFFS2_COMPRESSION_OPTIONS
|
|
default JFFS2_CMODE_PRIORITY
|
|
depends on JFFS2_FS
|
|
help
|
|
You can set here the default compression mode of JFFS2 from
|
|
the available compression modes. Don't touch if unsure.
|
|
|
|
config JFFS2_CMODE_NONE
|
|
bool "no compression"
|
|
help
|
|
Uses no compression.
|
|
|
|
config JFFS2_CMODE_PRIORITY
|
|
bool "priority"
|
|
help
|
|
Tries the compressors in a predefinied order and chooses the first
|
|
successful one.
|
|
|
|
config JFFS2_CMODE_SIZE
|
|
bool "size (EXPERIMENTAL)"
|
|
help
|
|
Tries all compressors and chooses the one which has the smallest
|
|
result.
|
|
|
|
endchoice
|
|
|
|
config CRAMFS
|
|
tristate "Compressed ROM file system support (cramfs)"
|
|
select ZLIB_INFLATE
|
|
help
|
|
Saying Y here includes support for CramFs (Compressed ROM File
|
|
System). CramFs is designed to be a simple, small, and compressed
|
|
file system for ROM based embedded systems. CramFs is read-only,
|
|
limited to 256MB file systems (with 16MB files), and doesn't support
|
|
16/32 bits uid/gid, hard links and timestamps.
|
|
|
|
See <file:Documentation/filesystems/cramfs.txt> and
|
|
<file:fs/cramfs/README> for further information.
|
|
|
|
To compile this as a module, choose M here: the module will be called
|
|
cramfs. Note that the root file system (the one containing the
|
|
directory /) cannot be compiled as a module.
|
|
|
|
If unsure, say N.
|
|
|
|
config VXFS_FS
|
|
tristate "FreeVxFS file system support (VERITAS VxFS(TM) compatible)"
|
|
help
|
|
FreeVxFS is a file system driver that support the VERITAS VxFS(TM)
|
|
file system format. VERITAS VxFS(TM) is the standard file system
|
|
of SCO UnixWare (and possibly others) and optionally available
|
|
for Sunsoft Solaris, HP-UX and many other operating systems.
|
|
Currently only readonly access is supported.
|
|
|
|
NOTE: the file system type as used by mount(1), mount(2) and
|
|
fstab(5) is 'vxfs' as it describes the file system format, not
|
|
the actual driver.
|
|
|
|
To compile this as a module, choose M here: the module will be
|
|
called freevxfs. If unsure, say N.
|
|
|
|
|
|
config HPFS_FS
|
|
tristate "OS/2 HPFS file system support"
|
|
help
|
|
OS/2 is IBM's operating system for PC's, the same as Warp, and HPFS
|
|
is the file system used for organizing files on OS/2 hard disk
|
|
partitions. Say Y if you want to be able to read files from and
|
|
write files to an OS/2 HPFS partition on your hard drive. OS/2
|
|
floppies however are in regular MSDOS format, so you don't need this
|
|
option in order to be able to read them. Read
|
|
<file:Documentation/filesystems/hpfs.txt>.
|
|
|
|
To compile this file system support as a module, choose M here: the
|
|
module will be called hpfs. If unsure, say N.
|
|
|
|
|
|
|
|
config QNX4FS_FS
|
|
tristate "QNX4 file system support (read only)"
|
|
help
|
|
This is the file system used by the real-time operating systems
|
|
QNX 4 and QNX 6 (the latter is also called QNX RTP).
|
|
Further information is available at <http://www.qnx.com/>.
|
|
Say Y if you intend to mount QNX hard disks or floppies.
|
|
Unless you say Y to "QNX4FS read-write support" below, you will
|
|
only be able to read these file systems.
|
|
|
|
To compile this file system support as a module, choose M here: the
|
|
module will be called qnx4.
|
|
|
|
If you don't know whether you need it, then you don't need it:
|
|
answer N.
|
|
|
|
config QNX4FS_RW
|
|
bool "QNX4FS write support (DANGEROUS)"
|
|
depends on QNX4FS_FS && EXPERIMENTAL && BROKEN
|
|
help
|
|
Say Y if you want to test write support for QNX4 file systems.
|
|
|
|
It's currently broken, so for now:
|
|
answer N.
|
|
|
|
|
|
|
|
config SYSV_FS
|
|
tristate "System V/Xenix/V7/Coherent file system support"
|
|
help
|
|
SCO, Xenix and Coherent are commercial Unix systems for Intel
|
|
machines, and Version 7 was used on the DEC PDP-11. Saying Y
|
|
here would allow you to read from their floppies and hard disk
|
|
partitions.
|
|
|
|
If you have floppies or hard disk partitions like that, it is likely
|
|
that they contain binaries from those other Unix systems; in order
|
|
to run these binaries, you will want to install linux-abi which is a
|
|
a set of kernel modules that lets you run SCO, Xenix, Wyse,
|
|
UnixWare, Dell Unix and System V programs under Linux. It is
|
|
available via FTP (user: ftp) from
|
|
<ftp://ftp.openlinux.org/pub/people/hch/linux-abi/>).
|
|
NOTE: that will work only for binaries from Intel-based systems;
|
|
PDP ones will have to wait until somebody ports Linux to -11 ;-)
|
|
|
|
If you only intend to mount files from some other Unix over the
|
|
network using NFS, you don't need the System V file system support
|
|
(but you need NFS file system support obviously).
|
|
|
|
Note that this option is generally not needed for floppies, since a
|
|
good portable way to transport files and directories between unixes
|
|
(and even other operating systems) is given by the tar program ("man
|
|
tar" or preferably "info tar"). Note also that this option has
|
|
nothing whatsoever to do with the option "System V IPC". Read about
|
|
the System V file system in
|
|
<file:Documentation/filesystems/sysv-fs.txt>.
|
|
Saying Y here will enlarge your kernel by about 27 KB.
|
|
|
|
To compile this as a module, choose M here: the module will be called
|
|
sysv.
|
|
|
|
If you haven't heard about all of this before, it's safe to say N.
|
|
|
|
|
|
|
|
config UFS_FS
|
|
tristate "UFS file system support (read only)"
|
|
help
|
|
BSD and derivate versions of Unix (such as SunOS, FreeBSD, NetBSD,
|
|
OpenBSD and NeXTstep) use a file system called UFS. Some System V
|
|
Unixes can create and mount hard disk partitions and diskettes using
|
|
this file system as well. Saying Y here will allow you to read from
|
|
these partitions; if you also want to write to them, say Y to the
|
|
experimental "UFS file system write support", below. Please read the
|
|
file <file:Documentation/filesystems/ufs.txt> for more information.
|
|
|
|
The recently released UFS2 variant (used in FreeBSD 5.x) is
|
|
READ-ONLY supported.
|
|
|
|
If you only intend to mount files from some other Unix over the
|
|
network using NFS, you don't need the UFS file system support (but
|
|
you need NFS file system support obviously).
|
|
|
|
Note that this option is generally not needed for floppies, since a
|
|
good portable way to transport files and directories between unixes
|
|
(and even other operating systems) is given by the tar program ("man
|
|
tar" or preferably "info tar").
|
|
|
|
When accessing NeXTstep files, you may need to convert them from the
|
|
NeXT character set to the Latin1 character set; use the program
|
|
recode ("info recode") for this purpose.
|
|
|
|
To compile the UFS file system support as a module, choose M here: the
|
|
module will be called ufs.
|
|
|
|
If you haven't heard about all of this before, it's safe to say N.
|
|
|
|
config UFS_FS_WRITE
|
|
bool "UFS file system write support (DANGEROUS)"
|
|
depends on UFS_FS && EXPERIMENTAL
|
|
help
|
|
Say Y here if you want to try writing to UFS partitions. This is
|
|
experimental, so you should back up your UFS partitions beforehand.
|
|
|
|
endmenu
|
|
|
|
menu "Network File Systems"
|
|
depends on NET
|
|
|
|
config NFS_FS
|
|
tristate "NFS file system support"
|
|
depends on INET
|
|
select LOCKD
|
|
select SUNRPC
|
|
select NFS_ACL_SUPPORT if NFS_V3_ACL
|
|
help
|
|
If you are connected to some other (usually local) Unix computer
|
|
(using SLIP, PLIP, PPP or Ethernet) and want to mount files residing
|
|
on that computer (the NFS server) using the Network File Sharing
|
|
protocol, say Y. "Mounting files" means that the client can access
|
|
the files with usual UNIX commands as if they were sitting on the
|
|
client's hard disk. For this to work, the server must run the
|
|
programs nfsd and mountd (but does not need to have NFS file system
|
|
support enabled in its kernel). NFS is explained in the Network
|
|
Administrator's Guide, available from
|
|
<http://www.tldp.org/docs.html#guide>, on its man page: "man
|
|
nfs", and in the NFS-HOWTO.
|
|
|
|
A superior but less widely used alternative to NFS is provided by
|
|
the Coda file system; see "Coda file system support" below.
|
|
|
|
If you say Y here, you should have said Y to TCP/IP networking also.
|
|
This option would enlarge your kernel by about 27 KB.
|
|
|
|
To compile this file system support as a module, choose M here: the
|
|
module will be called nfs.
|
|
|
|
If you are configuring a diskless machine which will mount its root
|
|
file system over NFS at boot time, say Y here and to "Kernel
|
|
level IP autoconfiguration" above and to "Root file system on NFS"
|
|
below. You cannot compile this driver as a module in this case.
|
|
There are two packages designed for booting diskless machines over
|
|
the net: netboot, available from
|
|
<http://ftp1.sourceforge.net/netboot/>, and Etherboot,
|
|
available from <http://ftp1.sourceforge.net/etherboot/>.
|
|
|
|
If you don't know what all this is about, say N.
|
|
|
|
config NFS_V3
|
|
bool "Provide NFSv3 client support"
|
|
depends on NFS_FS
|
|
help
|
|
Say Y here if you want your NFS client to be able to speak version
|
|
3 of the NFS protocol.
|
|
|
|
If unsure, say Y.
|
|
|
|
config NFS_V3_ACL
|
|
bool "Provide client support for the NFSv3 ACL protocol extension"
|
|
depends on NFS_V3
|
|
help
|
|
Implement the NFSv3 ACL protocol extension for manipulating POSIX
|
|
Access Control Lists. The server should also be compiled with
|
|
the NFSv3 ACL protocol extension; see the CONFIG_NFSD_V3_ACL option.
|
|
|
|
If unsure, say N.
|
|
|
|
config NFS_V4
|
|
bool "Provide NFSv4 client support (EXPERIMENTAL)"
|
|
depends on NFS_FS && EXPERIMENTAL
|
|
select RPCSEC_GSS_KRB5
|
|
help
|
|
Say Y here if you want your NFS client to be able to speak the newer
|
|
version 4 of the NFS protocol.
|
|
|
|
Note: Requires auxiliary userspace daemons which may be found on
|
|
http://www.citi.umich.edu/projects/nfsv4/
|
|
|
|
If unsure, say N.
|
|
|
|
config NFS_DIRECTIO
|
|
bool "Allow direct I/O on NFS files (EXPERIMENTAL)"
|
|
depends on NFS_FS && EXPERIMENTAL
|
|
help
|
|
This option enables applications to perform uncached I/O on files
|
|
in NFS file systems using the O_DIRECT open() flag. When O_DIRECT
|
|
is set for a file, its data is not cached in the system's page
|
|
cache. Data is moved to and from user-level application buffers
|
|
directly. Unlike local disk-based file systems, NFS O_DIRECT has
|
|
no alignment restrictions.
|
|
|
|
Unless your program is designed to use O_DIRECT properly, you are
|
|
much better off allowing the NFS client to manage data caching for
|
|
you. Misusing O_DIRECT can cause poor server performance or network
|
|
storms. This kernel build option defaults OFF to avoid exposing
|
|
system administrators unwittingly to a potentially hazardous
|
|
feature.
|
|
|
|
For more details on NFS O_DIRECT, see fs/nfs/direct.c.
|
|
|
|
If unsure, say N. This reduces the size of the NFS client, and
|
|
causes open() to return EINVAL if a file residing in NFS is
|
|
opened with the O_DIRECT flag.
|
|
|
|
config NFSD
|
|
tristate "NFS server support"
|
|
depends on INET
|
|
select LOCKD
|
|
select SUNRPC
|
|
select EXPORTFS
|
|
select NFS_ACL_SUPPORT if NFSD_V3_ACL || NFSD_V2_ACL
|
|
help
|
|
If you want your Linux box to act as an NFS *server*, so that other
|
|
computers on your local network which support NFS can access certain
|
|
directories on your box transparently, you have two options: you can
|
|
use the self-contained user space program nfsd, in which case you
|
|
should say N here, or you can say Y and use the kernel based NFS
|
|
server. The advantage of the kernel based solution is that it is
|
|
faster.
|
|
|
|
In either case, you will need support software; the respective
|
|
locations are given in the file <file:Documentation/Changes> in the
|
|
NFS section.
|
|
|
|
If you say Y here, you will get support for version 2 of the NFS
|
|
protocol (NFSv2). If you also want NFSv3, say Y to the next question
|
|
as well.
|
|
|
|
Please read the NFS-HOWTO, available from
|
|
<http://www.tldp.org/docs.html#howto>.
|
|
|
|
To compile the NFS server support as a module, choose M here: the
|
|
module will be called nfsd. If unsure, say N.
|
|
|
|
config NFSD_V2_ACL
|
|
bool
|
|
depends on NFSD
|
|
|
|
config NFSD_V3
|
|
bool "Provide NFSv3 server support"
|
|
depends on NFSD
|
|
help
|
|
If you would like to include the NFSv3 server as well as the NFSv2
|
|
server, say Y here. If unsure, say Y.
|
|
|
|
config NFSD_V3_ACL
|
|
bool "Provide server support for the NFSv3 ACL protocol extension"
|
|
depends on NFSD_V3
|
|
select NFSD_V2_ACL
|
|
help
|
|
Implement the NFSv3 ACL protocol extension for manipulating POSIX
|
|
Access Control Lists on exported file systems. NFS clients should
|
|
be compiled with the NFSv3 ACL protocol extension; see the
|
|
CONFIG_NFS_V3_ACL option. If unsure, say N.
|
|
|
|
config NFSD_V4
|
|
bool "Provide NFSv4 server support (EXPERIMENTAL)"
|
|
depends on NFSD_V3 && EXPERIMENTAL
|
|
select NFSD_TCP
|
|
select CRYPTO_MD5
|
|
select CRYPTO
|
|
select FS_POSIX_ACL
|
|
help
|
|
If you would like to include the NFSv4 server as well as the NFSv2
|
|
and NFSv3 servers, say Y here. This feature is experimental, and
|
|
should only be used if you are interested in helping to test NFSv4.
|
|
If unsure, say N.
|
|
|
|
config NFSD_TCP
|
|
bool "Provide NFS server over TCP support"
|
|
depends on NFSD
|
|
default y
|
|
help
|
|
If you want your NFS server to support TCP connections, say Y here.
|
|
TCP connections usually perform better than the default UDP when
|
|
the network is lossy or congested. If unsure, say Y.
|
|
|
|
config ROOT_NFS
|
|
bool "Root file system on NFS"
|
|
depends on NFS_FS=y && IP_PNP
|
|
help
|
|
If you want your Linux box to mount its whole root file system (the
|
|
one containing the directory /) from some other computer over the
|
|
net via NFS (presumably because your box doesn't have a hard disk),
|
|
say Y. Read <file:Documentation/nfsroot.txt> for details. It is
|
|
likely that in this case, you also want to say Y to "Kernel level IP
|
|
autoconfiguration" so that your box can discover its network address
|
|
at boot time.
|
|
|
|
Most people say N here.
|
|
|
|
config LOCKD
|
|
tristate
|
|
|
|
config LOCKD_V4
|
|
bool
|
|
depends on NFSD_V3 || NFS_V3
|
|
default y
|
|
|
|
config EXPORTFS
|
|
tristate
|
|
|
|
config NFS_ACL_SUPPORT
|
|
tristate
|
|
select FS_POSIX_ACL
|
|
|
|
config NFS_COMMON
|
|
bool
|
|
depends on NFSD || NFS_FS
|
|
default y
|
|
|
|
config SUNRPC
|
|
tristate
|
|
|
|
config SUNRPC_GSS
|
|
tristate
|
|
|
|
config RPCSEC_GSS_KRB5
|
|
tristate "Secure RPC: Kerberos V mechanism (EXPERIMENTAL)"
|
|
depends on SUNRPC && EXPERIMENTAL
|
|
select SUNRPC_GSS
|
|
select CRYPTO
|
|
select CRYPTO_MD5
|
|
select CRYPTO_DES
|
|
help
|
|
Provides for secure RPC calls by means of a gss-api
|
|
mechanism based on Kerberos V5. This is required for
|
|
NFSv4.
|
|
|
|
Note: Requires an auxiliary userspace daemon which may be found on
|
|
http://www.citi.umich.edu/projects/nfsv4/
|
|
|
|
If unsure, say N.
|
|
|
|
config RPCSEC_GSS_SPKM3
|
|
tristate "Secure RPC: SPKM3 mechanism (EXPERIMENTAL)"
|
|
depends on SUNRPC && EXPERIMENTAL
|
|
select SUNRPC_GSS
|
|
select CRYPTO
|
|
select CRYPTO_MD5
|
|
select CRYPTO_DES
|
|
help
|
|
Provides for secure RPC calls by means of a gss-api
|
|
mechanism based on the SPKM3 public-key mechanism.
|
|
|
|
Note: Requires an auxiliary userspace daemon which may be found on
|
|
http://www.citi.umich.edu/projects/nfsv4/
|
|
|
|
If unsure, say N.
|
|
|
|
config SMB_FS
|
|
tristate "SMB file system support (to mount Windows shares etc.)"
|
|
depends on INET
|
|
select NLS
|
|
help
|
|
SMB (Server Message Block) is the protocol Windows for Workgroups
|
|
(WfW), Windows 95/98, Windows NT and OS/2 Lan Manager use to share
|
|
files and printers over local networks. Saying Y here allows you to
|
|
mount their file systems (often called "shares" in this context) and
|
|
access them just like any other Unix directory. Currently, this
|
|
works only if the Windows machines use TCP/IP as the underlying
|
|
transport protocol, and not NetBEUI. For details, read
|
|
<file:Documentation/filesystems/smbfs.txt> and the SMB-HOWTO,
|
|
available from <http://www.tldp.org/docs.html#howto>.
|
|
|
|
Note: if you just want your box to act as an SMB *server* and make
|
|
files and printing services available to Windows clients (which need
|
|
to have a TCP/IP stack), you don't need to say Y here; you can use
|
|
the program SAMBA (available from <ftp://ftp.samba.org/pub/samba/>)
|
|
for that.
|
|
|
|
General information about how to connect Linux, Windows machines and
|
|
Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>.
|
|
|
|
To compile the SMB support as a module, choose M here: the module will
|
|
be called smbfs. Most people say N, however.
|
|
|
|
config SMB_NLS_DEFAULT
|
|
bool "Use a default NLS"
|
|
depends on SMB_FS
|
|
help
|
|
Enabling this will make smbfs use nls translations by default. You
|
|
need to specify the local charset (CONFIG_NLS_DEFAULT) in the nls
|
|
settings and you need to give the default nls for the SMB server as
|
|
CONFIG_SMB_NLS_REMOTE.
|
|
|
|
The nls settings can be changed at mount time, if your smbmount
|
|
supports that, using the codepage and iocharset parameters.
|
|
|
|
smbmount from samba 2.2.0 or later supports this.
|
|
|
|
config SMB_NLS_REMOTE
|
|
string "Default Remote NLS Option"
|
|
depends on SMB_NLS_DEFAULT
|
|
default "cp437"
|
|
help
|
|
This setting allows you to specify a default value for which
|
|
codepage the server uses. If this field is left blank no
|
|
translations will be done by default. The local codepage/charset
|
|
default to CONFIG_NLS_DEFAULT.
|
|
|
|
The nls settings can be changed at mount time, if your smbmount
|
|
supports that, using the codepage and iocharset parameters.
|
|
|
|
smbmount from samba 2.2.0 or later supports this.
|
|
|
|
config CIFS
|
|
tristate "CIFS support (advanced network filesystem for Samba, Window and other CIFS compliant servers)"
|
|
depends on INET
|
|
select NLS
|
|
help
|
|
This is the client VFS module for the Common Internet File System
|
|
(CIFS) protocol which is the successor to the Server Message Block
|
|
(SMB) protocol, the native file sharing mechanism for most early
|
|
PC operating systems. The CIFS protocol is fully supported by
|
|
file servers such as Windows 2000 (including Windows 2003, NT 4
|
|
and Windows XP) as well by Samba (which provides excellent CIFS
|
|
server support for Linux and many other operating systems). Currently
|
|
you must use the smbfs client filesystem to access older SMB servers
|
|
such as Windows 9x and OS/2.
|
|
|
|
The intent of the cifs module is to provide an advanced
|
|
network file system client for mounting to CIFS compliant servers,
|
|
including support for dfs (hierarchical name space), secure per-user
|
|
session establishment, safe distributed caching (oplock), optional
|
|
packet signing, Unicode and other internationalization improvements,
|
|
and optional Winbind (nsswitch) integration. You do not need to enable
|
|
cifs if running only a (Samba) server. It is possible to enable both
|
|
smbfs and cifs (e.g. if you are using CIFS for accessing Windows 2003
|
|
and Samba 3 servers, and smbfs for accessing old servers). If you need
|
|
to mount to Samba or Windows 2003 servers from this machine, say Y.
|
|
|
|
config CIFS_STATS
|
|
bool "CIFS statistics"
|
|
depends on CIFS
|
|
help
|
|
Enabling this option will cause statistics for each server share
|
|
mounted by the cifs client to be displayed in /proc/fs/cifs/Stats
|
|
|
|
config CIFS_XATTR
|
|
bool "CIFS extended attributes (EXPERIMENTAL)"
|
|
depends on CIFS
|
|
help
|
|
Extended attributes are name:value pairs associated with inodes by
|
|
the kernel or by users (see the attr(5) manual page, or visit
|
|
<http://acl.bestbits.at/> for details). CIFS maps the name of
|
|
extended attributes beginning with the user namespace prefix
|
|
to SMB/CIFS EAs. EAs are stored on Windows servers without the
|
|
user namespace prefix, but their names are seen by Linux cifs clients
|
|
prefaced by the user namespace prefix. The system namespace
|
|
(used by some filesystems to store ACLs) is not supported at
|
|
this time.
|
|
|
|
If unsure, say N.
|
|
|
|
config CIFS_POSIX
|
|
bool "CIFS POSIX Extensions (EXPERIMENTAL)"
|
|
depends on CIFS_XATTR
|
|
help
|
|
Enabling this option will cause the cifs client to attempt to
|
|
negotiate a newer dialect with servers, such as Samba 3.0.5
|
|
or later, that optionally can handle more POSIX like (rather
|
|
than Windows like) file behavior. It also enables
|
|
support for POSIX ACLs (getfacl and setfacl) to servers
|
|
(such as Samba 3.10 and later) which can negotiate
|
|
CIFS POSIX ACL support. If unsure, say N.
|
|
|
|
config CIFS_EXPERIMENTAL
|
|
bool "CIFS Experimental Features (EXPERIMENTAL)"
|
|
depends on CIFS
|
|
help
|
|
Enables cifs features under testing. These features
|
|
are highly experimental. If unsure, say N.
|
|
|
|
config NCP_FS
|
|
tristate "NCP file system support (to mount NetWare volumes)"
|
|
depends on IPX!=n || INET
|
|
help
|
|
NCP (NetWare Core Protocol) is a protocol that runs over IPX and is
|
|
used by Novell NetWare clients to talk to file servers. It is to
|
|
IPX what NFS is to TCP/IP, if that helps. Saying Y here allows you
|
|
to mount NetWare file server volumes and to access them just like
|
|
any other Unix directory. For details, please read the file
|
|
<file:Documentation/filesystems/ncpfs.txt> in the kernel source and
|
|
the IPX-HOWTO from <http://www.tldp.org/docs.html#howto>.
|
|
|
|
You do not have to say Y here if you want your Linux box to act as a
|
|
file *server* for Novell NetWare clients.
|
|
|
|
General information about how to connect Linux, Windows machines and
|
|
Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>.
|
|
|
|
To compile this as a module, choose M here: the module will be called
|
|
ncpfs. Say N unless you are connected to a Novell network.
|
|
|
|
source "fs/ncpfs/Kconfig"
|
|
|
|
config CODA_FS
|
|
tristate "Coda file system support (advanced network fs)"
|
|
depends on INET
|
|
help
|
|
Coda is an advanced network file system, similar to NFS in that it
|
|
enables you to mount file systems of a remote server and access them
|
|
with regular Unix commands as if they were sitting on your hard
|
|
disk. Coda has several advantages over NFS: support for
|
|
disconnected operation (e.g. for laptops), read/write server
|
|
replication, security model for authentication and encryption,
|
|
persistent client caches and write back caching.
|
|
|
|
If you say Y here, your Linux box will be able to act as a Coda
|
|
*client*. You will need user level code as well, both for the
|
|
client and server. Servers are currently user level, i.e. they need
|
|
no kernel support. Please read
|
|
<file:Documentation/filesystems/coda.txt> and check out the Coda
|
|
home page <http://www.coda.cs.cmu.edu/>.
|
|
|
|
To compile the coda client support as a module, choose M here: the
|
|
module will be called coda.
|
|
|
|
config CODA_FS_OLD_API
|
|
bool "Use 96-bit Coda file identifiers"
|
|
depends on CODA_FS
|
|
help
|
|
A new kernel-userspace API had to be introduced for Coda v6.0
|
|
to support larger 128-bit file identifiers as needed by the
|
|
new realms implementation.
|
|
|
|
However this new API is not backward compatible with older
|
|
clients. If you really need to run the old Coda userspace
|
|
cache manager then say Y.
|
|
|
|
For most cases you probably want to say N.
|
|
|
|
config AFS_FS
|
|
# for fs/nls/Config.in
|
|
tristate "Andrew File System support (AFS) (Experimental)"
|
|
depends on INET && EXPERIMENTAL
|
|
select RXRPC
|
|
help
|
|
If you say Y here, you will get an experimental Andrew File System
|
|
driver. It currently only supports unsecured read-only AFS access.
|
|
|
|
See <file:Documentation/filesystems/afs.txt> for more intormation.
|
|
|
|
If unsure, say N.
|
|
|
|
config RXRPC
|
|
tristate
|
|
|
|
config 9P_FS
|
|
tristate "Plan 9 Resource Sharing Support (9P2000) (Experimental)"
|
|
depends on INET && EXPERIMENTAL
|
|
help
|
|
If you say Y here, you will get experimental support for
|
|
Plan 9 resource sharing via the 9P2000 protocol.
|
|
|
|
See <http://v9fs.sf.net> for more information.
|
|
|
|
If unsure, say N.
|
|
|
|
endmenu
|
|
|
|
menu "Partition Types"
|
|
|
|
source "fs/partitions/Kconfig"
|
|
|
|
endmenu
|
|
|
|
source "fs/nls/Kconfig"
|
|
|
|
endmenu
|
|
|