#!/bin/sh
+. /etc/nvram.sh
+is_clean() {
+ grep Broadcom /proc/cpuinfo 2>&- >&- || return 0
+ OFFSET="$((0x$(dd if=/dev/mtdblock/1 bs=1 skip=$((0x14)) count=2 2>&- | hexdump | grep 0000000 | cut -d ' ' -f 2) - 1))"
+ dd if=/dev/mtdblock/1 bs=1 skip=$OFFSET count=1 2>&- | hexdump -v | grep ' 0000' > /dev/null && return 255 || return 0
+}
+
if [ "$1" != "failsafe" ]; then
mount | grep jffs2 >&-
if [ $? = 0 ] ; then
mount -o remount,rw /dev/root /
fi
else
- mtd unlock OpenWrt
- mount -t jffs2 /dev/mtdblock/4 /jffs
- pivot_root /jffs /jffs/rom
- mount none /proc -t proc
- mount none /dev -t devfs
- umount /rom/proc rom/dev >&-
+ if [ -z "$(nvram get no_root_swap)" ]; then
+ is_clean || {
+ mtd erase OpenWrt
+ mtd unlock linux
+ jffs2root --clean
+ }
+ mtd unlock OpenWrt
+ mount -t jffs2 /dev/mtdblock/4 /jffs
+ pivot_root /jffs /jffs/rom
+ mount none /proc -t proc
+ mount none /dev -t devfs
+ umount /rom/proc /rom/dev >&-
+ fi
fi
fi
mount none /tmp -t tmpfs -o nosuid,nodev,mode=1777,size=50%
mkdir -p /dev/pts
mount none /dev/pts -t devpts
+grep sysfs /proc/filesystems >&- && mount -t sysfs none /sys