]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/commit
init/do_mounts.c: add root=PARTLABEL=<name> support
authorNikolaus Voss <nikolaus.voss@loewensteinmedical.de>
Tue, 30 Oct 2018 22:05:57 +0000 (15:05 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 31 Oct 2018 15:54:13 +0000 (08:54 -0700)
commitf027c34d844013d9d6c902af8fa01a82d6e5073d
tree46d4851a2f48ad45fb064ddd30c30c36362059cc
parent22ebb72b32606aa0f891e09de007be7d3d8effd1
init/do_mounts.c: add root=PARTLABEL=<name> support

Support referencing the root partition label from GPT as argument
to the root= option on the kernel command line in analogy to
referencing the partition uuid as root=PARTUUID=<uuid>.

Specifying the partition label instead of the uuid is often much
easier, e.g. in embedded environments when there is an
A/B rootfs partition scheme for interruptible firmware updates
(i.e. rootfsA/ rootfsB).

The partition label can be queried with the blkid command.

Link: http://lkml.kernel.org/r/20180822060904.828E510665E@pc-niv.weinmann.com
Signed-off-by: Nikolaus Voss <nikolaus.voss@loewensteinmedical.de>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Sasha Levin <Alexander.Levin@microsoft.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
init/do_mounts.c