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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: ebc974be12c3e83e961c99c24fde267d6c8e8bfc)

Signed-off-by: Diego Rondini <diego.rondini@kynetics.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Diego Rondini
2019-09-19 09:45:09 +02:00
committed by Richard Purdie
parent c21d6a80f9
commit 2657837f72
1 changed files with 5 additions and 0 deletions
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meta/recipes-core/initrdscripts/initramfs-framework/rootfs
+5
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@@ -36,6 +36,11 @@ rootfs_run() {
bootparam_root="/dev/disk/by-partlabel/$root_partlabel"
fi
if [ "`echo ${bootparam_root} | cut -c1-10`" = "PARTLABEL=" ]; then
root_partlabel=`echo $bootparam_root | cut -c11-`
bootparam_root="/dev/disk/by-partlabel/$root_partlabel"
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"