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authorChristian Marangi <ansuelsmth@gmail.com>2024-10-03 00:11:42 +0200
committerJens Axboe <axboe@kernel.dk>2024-10-22 08:14:56 -0600
commit592e4deeab50aa71a0b20820f2376c900e920211 (patch)
tree350cec13fbb65384727814e4c2a09061c3ff0b3a /Documentation
parentba40f4c590f4c91119f3802ed501499709f583a9 (diff)
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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 <ansuelsmth@gmail.com> Link: https://lore.kernel.org/r/20241002221306.4403-3-ansuelsmth@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/block/cmdline-partition.rst5
1 files changed, 4 insertions, 1 deletions
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=<blkdev-def>[;<blkdev-def>]
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::