From 592e4deeab50aa71a0b20820f2376c900e920211 Mon Sep 17 00:00:00 2001 From: Christian Marangi Date: Thu, 3 Oct 2024 00:11:42 +0200 Subject: [PATCH] docs: block: Document support for read-only partition in cmdline part Document support for read-only partition in cmdline partition for block devices by appending "ro" after the (partition name). Signed-off-by: Christian Marangi Link: https://lore.kernel.org/r/20241002221306.4403-3-ansuelsmth@gmail.com Signed-off-by: Jens Axboe --- Documentation/block/cmdline-partition.rst | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/Documentation/block/cmdline-partition.rst b/Documentation/block/cmdline-partition.rst index 530bedff548a..526ba201dddc 100644 --- a/Documentation/block/cmdline-partition.rst +++ b/Documentation/block/cmdline-partition.rst @@ -39,13 +39,16 @@ blkdevparts=[;] create a link to block device partition with the name "PARTNAME". User space application can access partition by partition name. +ro + read-only. Flag the partition as read-only. + Example: eMMC disk names are "mmcblk0" and "mmcblk0boot0". bootargs:: - 'blkdevparts=mmcblk0:1G(data0),1G(data1),-;mmcblk0boot0:1m(boot),-(kernel)' + 'blkdevparts=mmcblk0:1G(data0),1G(data1),-;mmcblk0boot0:1m(boot)ro,-(kernel)' dmesg::