[OE-core] [PATCH 3/4] initscripts: fix read-only-rootfs-hook.sh to avoid using unionfs
Paul Eggleton
paul.eggleton at linux.intel.com
Wed Apr 10 15:42:27 UTC 2013
Unionfs isn't available everywhere, and we can get similar results (if
not quite as neatly) by using bind mounts + tmpfs and copying the data
over.
Signed-off-by: Paul Eggleton <paul.eggleton at linux.intel.com>
---
.../initscripts-1.0/read-only-rootfs-hook.sh | 15 ++++-----------
1 file changed, 4 insertions(+), 11 deletions(-)
diff --git a/meta/recipes-core/initscripts/initscripts-1.0/read-only-rootfs-hook.sh b/meta/recipes-core/initscripts/initscripts-1.0/read-only-rootfs-hook.sh
index 3a295ee..4f3e0d9 100644
--- a/meta/recipes-core/initscripts/initscripts-1.0/read-only-rootfs-hook.sh
+++ b/meta/recipes-core/initscripts/initscripts-1.0/read-only-rootfs-hook.sh
@@ -4,16 +4,9 @@
[ "$ROOTFS_READ_ONLY" = "no" ] && exit 0
-# Make sure unionfs is in /proc/filesystems
-if ! grep -q unionfs /proc/filesystems; then
- echo "ERROR: unionfs not supported by kernel!"
- exit 1
+if [ "$1" = "start" ] ; then
+ mkdir -p /var/volatile/lib
+ cp -a /var/lib/* /var/volatile/lib
+ mount --bind /var/volatile/lib /var/lib
fi
-mkdir -p /var/volatile/lib
-mount -t unionfs -o dirs=/var/volatile/lib:/var/lib=ro none /var/lib
-
-if [ $? != 0 ]; then
- echo "ERROR: Union mount failed!"
- exit 1
-fi
--
1.7.10.4
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