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.

Signed-off-by: Diego Rondini <diego.rond...@kynetics.com>
---
 meta/recipes-core/initrdscripts/initramfs-framework/rootfs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/meta/recipes-core/initrdscripts/initramfs-framework/rootfs 
b/meta/recipes-core/initrdscripts/initramfs-framework/rootfs
index 76fa84d354..61baf73a60 100644
--- a/meta/recipes-core/initrdscripts/initramfs-framework/rootfs
+++ b/meta/recipes-core/initrdscripts/initramfs-framework/rootfs
@@ -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"
-- 
2.21.0

-- 
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