Mount the root filesystem by label rather than path

Support identifying the root filesystem via a kernel command line like
'ostree_root=LABEL=mylabel'. Also make it mount a filesystem labeled 'otaroot'
by default.

This means it is possible to test the Minnowboard build in Qemu.

1 files changed, 2 insertions, 1 deletions

diff --git a/recipes-sota/ostree-initrd/files/init.sh b/recipes-sota/ostree-initrd/files/init.sh
index 806a7b1..1814ca3 100644
--- a/recipes-sota/ostree-initrd/files/init.sh
+++ b/recipes-sota/ostree-initrd/files/init.sh
@@ -29,10 +29,11 @@ get_ostree_sysroot() {
         for opt in `cat /proc/cmdline`; do
                 arg=`echo $opt | cut -d'=' -f1`
                 if [ $arg == "ostree_root" ]; then
-                        echo $opt | cut -d'=' -f2
+                        echo $opt | cut -d'=' -f2-
                         return
                 fi
         done
+        echo "LABEL=otaroot"
 }
 
 export PATH=/sbin:/usr/sbin:/bin:/usr/bin:/usr/lib/ostree