linux/Documentation/aoe/udev.txt

# These rules tell udev what device nodes to create for aoe support.
# They may be installed along the following lines.  Check the section
# 8 udev manpage to see whether your udev supports SUBSYSTEM, and
# whether it uses one or two equal signs for SUBSYSTEM and KERNEL.
# 
#   ecashin@makki ~$ su
#   Password:
#   bash# find /etc -type f -name udev.conf
#   /etc/udev/udev.conf
#   bash# grep udev_rules= /etc/udev/udev.conf
#   udev_rules="/etc/udev/rules.d/"
#   bash# ls /etc/udev/rules.d/
#   10-wacom.rules  50-udev.rules
#   bash# cp /path/to/linux-2.6.xx/Documentation/aoe/udev.txt \
#           /etc/udev/rules.d/60-aoe.rules
#  

# aoe char devices
SUBSYSTEM=="aoe", KERNEL=="discover",	NAME="etherd/%k", GROUP="disk", MODE="0220"
SUBSYSTEM=="aoe", KERNEL=="err",	NAME="etherd/%k", GROUP="disk", MODE="0440"
SUBSYSTEM=="aoe", KERNEL=="interfaces",	NAME="etherd/%k", GROUP="disk", MODE="0220"
SUBSYSTEM=="aoe", KERNEL=="revalidate",	NAME="etherd/%k", GROUP="disk", MODE="0220"
SUBSYSTEM=="aoe", KERNEL=="flush",	NAME="etherd/%k", GROUP="disk", MODE="0220"

# aoe block devices     
KERNEL=="etherd*",       GROUP="disk"