Use xattr to store the filesystem initialization state of the overlay.
As long as the filesystem is not marked as initialized yet (happens in
/etc/init.d/done), all overlay data (except for sysupgrade.tgz) will be
discarded before the system is allowed to boot
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@44942 3c298f89-4303-0410-b956-a3cf2f4a3e73
6374e77652