[OpenWrt-Devel] [PATCH] base-files: fix ramoverlay function with kernels 3.18+
Helmut Schaa
helmut.schaa at googlemail.com
Thu Sep 17 08:24:16 EDT 2015
Even though there are not many users left within the OpenWrt tree it seems
this function broke during the kernel 3.18 transition.
Fix it by providing a workdir as required by overlayfs.
Signed-off-by: Helmut Schaa <helmut.schaa at googlemail.com>
---
package/base-files/files/lib/functions/preinit.sh | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/package/base-files/files/lib/functions/preinit.sh b/package/base-files/files/lib/functions/preinit.sh
index db1f298..57862a1 100644
--- a/package/base-files/files/lib/functions/preinit.sh
+++ b/package/base-files/files/lib/functions/preinit.sh
@@ -75,13 +75,14 @@ pivot() { # <new_root> <old_root>
}
}
-fopivot() { # <rw_root> <ro_root> <dupe?>
- /bin/mount -o noatime,lowerdir=/,upperdir=$1 -t overlayfs "overlayfs:$1" /mnt
- pivot /mnt $2
+fopivot() { # <rw_root> <work_dir> <ro_root> <dupe?>
+ /bin/mount -o noatime,lowerdir=/,upperdir=$1,workdir=$2 -t overlay "overlayfs:$1" /mnt
+ pivot /mnt $3
}
ramoverlay() {
mkdir -p /tmp/root
/bin/mount -t tmpfs -o noatime,mode=0755 root /tmp/root
- fopivot /tmp/root /rom 1
+ mkdir -p /tmp/root/root /tmp/root/work
+ fopivot /tmp/root/root /tmp/root/work /rom 1
}
--
1.8.4.5
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