-mount none /proc -t proc
-size=$(awk '/Mem:/ {l=5242880;print((s=$2/2)<l)?$2-l:s}' /proc/meminfo)
-mount none /tmp -t tmpfs -o size=$size,nosuid,nodev,mode=1777
-mkdir -p /dev/pts
-mount none /dev/pts -t devpts
-mount -t sysfs none /sys 2>&-
-mount -o remount,rw /dev/root /
+jffs2_ready () {
+ mtdpart="$(find_mtd_part rootfs_data)"
+ magic=$(hexdump $mtdpart -n 4 -e '4/1 "%02x"')
+ [ "$magic" != "deadc0de" ]
+}
+
+grep rootfs_data /proc/mtd >/dev/null 2>/dev/null && {
+ . /bin/firstboot
+ mtd unlock rootfs_data
+ jffs2_ready && {
+ echo "switching to jffs2"
+ mount "$(find_mtd_part rootfs_data)" /jffs -t jffs2 && \
+ fopivot /jffs /rom
+ } || {
+ echo "jffs2 not ready yet; using ramdisk"
+ ramoverlay
+ }
+} || {
+ mtd unlock rootfs
+ mount -o remount,rw /dev/root /
+}