done
}
-jffs2_ready() {
- mtdpart="$(find_mtd_part rootfs_data)"
- [ -z "$mtdpart" ] && return 1
- magic=$(hexdump $mtdpart -n 4 -e '4/1 "%02x"')
- [ "$magic" != "deadc0de" ]
-}
-
-dupe() { # <new_root> <old_root>
- cd $1
- echo -n "creating directories... "
- {
- cd $2
- find . -xdev -type d
- echo "./dev ./overlay ./mnt ./proc ./tmp"
- # xdev skips mounted directories
- cd $1
- } | xargs mkdir -p
- echo "done"
-
- echo -n "setting up symlinks... "
- for file in $(cd $2; find . -xdev -type f;); do
- case "$file" in
- ./rom/note) ;; #nothing
- ./etc/config*|\
- ./usr/lib/opkg/info/*) cp -af $2/$file $file;;
- *) ln -sf /rom/${file#./*} $file;;
- esac
- done
- for file in $(cd $2; find . -xdev -type l;); do
- cp -af $2/${file#./*} $file
- done
- echo "done"
-}
-
pivot() { # <new_root> <old_root>
- mount -o noatime,move /proc $1/proc && \
+ /bin/mount -o noatime,move /proc $1/proc && \
pivot_root $1 $1$2 && {
- mount -o noatime,move $2/dev /dev
- mount -o noatime,move $2/tmp /tmp
- mount -o noatime,move $2/sys /sys 2>&-
- mount -o noatime,move $2/overlay /overlay 2>&-
+ /bin/mount -o noatime,move $2/dev /dev
+ /bin/mount -o noatime,move $2/tmp /tmp
+ /bin/mount -o noatime,move $2/sys /sys 2>&-
+ /bin/mount -o noatime,move $2/overlay /overlay 2>&-
return 0
}
}
fopivot() { # <rw_root> <ro_root> <dupe?>
- root=$1
- {
- if grep -q overlay /proc/filesystems; then
- mount -o noatime,lowerdir=/,upperdir=$1 -t overlayfs "overlayfs:$1" /mnt && root=/mnt
- elif grep -q mini_fo /proc/filesystems; then
- mount -t mini_fo -o noatime,base=/,sto=$1 "mini_fo:$1" /mnt 2>&- && root=/mnt
- else
- mount --bind -o noatime / /mnt
- mount --bind -o noatime,union "$1" /mnt && root=/mnt
- fi
- } || {
- [ "$3" = "1" ] && {
- mount | grep "on $1 type" 2>&- 1>&- || mount -o noatime,bind $1 $1
- dupe $1 $rom
- }
- }
- pivot $root $2
+ /bin/mount -o noatime,lowerdir=/,upperdir=$1 -t overlayfs "overlayfs:$1" /mnt
+ pivot /mnt $2
}
ramoverlay() {
mkdir -p /tmp/root
- mount -t tmpfs -o noatime,mode=0755 root /tmp/root
+ /bin/mount -t tmpfs -o noatime,mode=0755 root /tmp/root
fopivot /tmp/root /rom 1
}