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initramfs-framework: support PARTLABEL option

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Since commit (kernel >= 4.20):
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f027c34d844013d9d6c902af8fa01a82d6e5073d
specifying rootfs by PARTLABEL is supported. This commit adds support to
specify root by GPT partition label.

(From OE-Core rev: e714b8982c2decbc24598af46f44c3a94834591f)

Signed-off-by: Diego Rondini <diego.rondini@kynetics.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Diego Rondini
2019-09-16 15:23:15 +02:00
committed by Richard Purdie
parent fc94afe15e
commit 4b3656a978
1 changed files with 5 additions and 0 deletions
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5
meta/recipes-core/initrdscripts/initramfs-framework/rootfs
View File

@@ -31,6 +31,11 @@ rootfs_run() {
bootparam_root="/dev/disk/by-partuuid/$root_uuid"
fi
if [ "`echo ${bootparam_root} | cut -c1-10`" = "PARTLABEL=" ]; then
root_uuid=`echo $bootparam_root | cut -c11-`
bootparam_root="/dev/disk/by-partlabel/$root_uuid"
fi
if [ "`echo ${bootparam_root} | cut -c1-6`" = "LABEL=" ]; then
root_label=`echo $bootparam_root | cut -c7-`
bootparam_root="/dev/disk/by-label/$root_label"