image.bbclass: replace rootfs with /dev/root

Replace 'rootfs' with '/dev/root' in read_only_rootfs_hook function
to match the latest change in fstab file from the base-files recipe.

The related commit is as follows.

commit e8bc7a136a81a0d8df2d32dfba0920c1b2835141
    base-files: use /dev/root in /etc/fstab for systemd support

(From OE-Core rev: 31b5aeb5a0b82842e1dd8545bf5d43778d8c218b)

Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/meta/classes/image.bbclass b/meta/classes/image.bbclass
index b0639ae33f..29309f55cb 100644
--- a/meta/classes/image.bbclass
+++ b/meta/classes/image.bbclass
@@ -175,7 +175,7 @@ do_rootfs[umask] = "022"
 read_only_rootfs_hook () {
         if ${@base_contains("DISTRO_FEATURES", "sysvinit", "true", "false", d)}; then
                 # Tweak the mount option and fs_passno for rootfs in fstab
-                sed -i -e '/^[#[:space:]]*rootfs/{s/defaults/ro/;s/\([[:space:]]*[[:digit:]]\)\([[:space:]]*\)[[:digit:]]$/\1\20/}' ${IMAGE_ROOTFS}/etc/fstab
+                sed -i -e '/^[#[:space:]]*\/dev\/root/{s/defaults/ro/;s/\([[:space:]]*[[:digit:]]\)\([[:space:]]*\)[[:digit:]]$/\1\20/}' ${IMAGE_ROOTFS}/etc/fstab
                 # Change the value of ROOTFS_READ_ONLY in /etc/default/rcS to yes
                 if [ -e ${IMAGE_ROOTFS}/etc/default/rcS ]; then
                         sed -i 's/ROOTFS_READ_ONLY=no/ROOTFS_READ_ONLY=yes/' ${IMAGE_ROOTFS}/etc/default/rcS