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make_dev_ssd: support devices using /dev/dm-1 as root device.

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Some devices may use rootdev=/dev/dm-1 as root device (the default one was
dm-0, according to build scripts). Running make_dev_ssd.sh
--remove_rootfs_verification on these devices will fail changing rootdev kernel
command line, and cause people not able to re-mount root device as writable.

To support running make_dev_ssd on these devices, we want to change the rootdev
pattern to dm[0-9].

BUG=chromium:428041.
TEST=make_dev_ssd.sh --remove_rootfs_verification
BRANCH=none

Change-Id: Idfd251c58e7d39b0b80ec1fc68989c2f49bdd1b2
Reviewed-on: https://chromium-review.googlesource.com/226782
Tested-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
This commit is contained in:
Hung-Te Lin
2014-11-01 10:04:16 +08:00
committed by chrome-internal-fetch
parent 6f7f5df816
commit 42f02139d5
1 changed files with 1 additions and 1 deletions
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2
scripts/image_signing/make_dev_ssd.sh
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@@ -62,7 +62,7 @@ EXEC_LOG="$(make_temp_file)"
remove_rootfs_verification() {
local new_root="PARTUUID=%U/PARTNROFF=1"
echo "$*" | sed '
s| root=/dev/dm-0 | root='"$new_root"' |
s| root=/dev/dm-[0-9] | root='"$new_root"' |
s| dm_verity.dev_wait=1 | dm_verity.dev_wait=0 |
s| payload=PARTUUID=%U/PARTNROFF=1 | payload=ROOT_DEV |
s| hashtree=PARTUUID=%U/PARTNROFF=1 | hashtree=HASH_DEV |