init: add partuuid support.

Signed-off-by: Emmanuel Roullit <emmanuel.roullit@gmail.com>

1 files changed, 14 insertions, 3 deletions

diff --git a/recipes-core/initrdscripts/files/init-readonly-rootfs-overlay-boot.sh b/recipes-core/initrdscripts/files/init-readonly-rootfs-overlay-boot.sh
index 1dcabf9..59d63ca 100644
--- a/recipes-core/initrdscripts/files/init-readonly-rootfs-overlay-boot.sh
+++ b/recipes-core/initrdscripts/files/init-readonly-rootfs-overlay-boot.sh
@@ -91,7 +91,13 @@ mount_and_boot() {
         # current root file system via bind mount.
         ROOT_ROMOUNTPARAMS_BIND="-o ${ROOT_ROMOUNTOPTIONS} /"
         if [ -n "${ROOT_RODEVICE}" ]; then
-                ROOT_ROMOUNTPARAMS="-o ${ROOT_ROMOUNTOPTIONS_DEVICE} $ROOT_RODEVICE"
+                ROOT_ROPARTUUID=$(echo ${ROOT_RODEVICE} | awk -F= '/PARTUUID/ {print $NF}')
+                if [ -n "${ROOT_ROPARTUUID}" ]; then
+                        ROOT_ROMOUNTPARAMS="-o ${ROOT_ROMOUNTOPTIONS_DEVICE} $(blkid | awk -F: "/${ROOT_ROPARTUUID}/ { print \$1}")"
+                else
+                        ROOT_ROMOUNTPARAMS="-o ${ROOT_ROMOUNTOPTIONS_DEVICE} $ROOT_RODEVICE"
+                fi
+
                 if [ -n "${ROOT_ROFSTYPE}" ]; then
                         ROOT_ROMOUNTPARAMS="-t $ROOT_ROFSTYPE $ROOT_ROMOUNTPARAMS"
                 fi
@@ -124,8 +130,13 @@ mount_and_boot() {
         # If a read-write device was specified via kernel command line, use
         # it, otherwise default to tmpfs.
         if [ -n "${ROOT_RWDEVICE}" ]; then
-                
-                ROOT_RWMOUNTPARAMS="-o $ROOT_RWMOUNTOPTIONS_DEVICE $ROOT_RWDEVICE"
+                ROOT_RWPARTUUID=$(echo ${ROOT_RWDEVICE} | awk -F= '/PARTUUID/ {print $NF}')
+                if [ -n "${ROOT_RWPARTUUID}" ]; then
+                        ROOT_RWMOUNTPARAMS="-o ${ROOT_RWMOUNTOPTIONS_DEVICE} $(blkid | awk -F: "/${ROOT_RWPARTUUID}/ { print \$1}")"
+                else
+                        ROOT_RWMOUNTPARAMS="-o $ROOT_RWMOUNTOPTIONS_DEVICE $ROOT_RWDEVICE"
+                fi
+
                 if [ -n "${ROOT_RWFSTYPE}" ]; then
                         ROOT_RWMOUNTPARAMS="-t $ROOT_RWFSTYPE $ROOT_RWMOUNTPARAMS"
                 fi