Commit 592e4dee authored by Christian Marangi's avatar Christian Marangi Committed by Jens Axboe
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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: default avatarChristian Marangi <ansuelsmth@gmail.com>
Link: https://lore.kernel.org/r/20241002221306.4403-3-ansuelsmth@gmail.com


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent ba40f4c5

Documentation/block/cmdline-partition.rst

+4 −1
Original line number Diff line number Diff line
@@ -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::