[OE-core] [PATCH] udev: Don't remount root filesystem under /media
Andy Ross
andy.ross at windriver.com
Fri Aug 10 19:00:55 UTC 2012
The existing logic to avoid mounting already-mounted filesystems
breaks for a kernel-mounted root, which appears as /dev/root in
/proc/mounts. The effect is that an image booted with
e.g. "root=/dev/mmcblk0p1" will find its root filesystem remount rw
under /media/mmcblk0p1 at boot.
Signed-off-by: Andy Ross <andy.ross at windriver.com>
---
meta/recipes-core/udev/udev/mount.sh | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/meta/recipes-core/udev/udev/mount.sh b/meta/recipes-core/udev/udev/mount.sh
index c13b8bb..61d14a3 100644
--- a/meta/recipes-core/udev/udev/mount.sh
+++ b/meta/recipes-core/udev/udev/mount.sh
@@ -49,9 +49,15 @@ if [ "$ACTION" = "add" ] && [ -n "$DEVNAME" ]; then
elif [ -x $MOUNT ]; then
$MOUNT $DEVNAME 2> /dev/null
fi
-
- # If the device isn't mounted at this point, it isn't configured in fstab
- grep -q "^$DEVNAME " /proc/mounts || automount
+
+ # If the device isn't mounted at this point, it isn't
+ # configured in fstab (note the root filesystem shows up as
+ # /dev/root in /proc/mounts, so parse the command line for
+ # that case)
+ root=`sed 's/\(^\|.* \)root=\([^ ]*\).*/\2/' /proc/cmdline`
+ if [ "$root" != "$DEVNAME" ]; then
+ grep -q "^$DEVNAME " /proc/mounts || automount
+ fi
fi
--
1.7.11.2
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