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#!/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
if [ $(cat /proc/mtd | wc -l) = 6 ]; then
echo 5 > /proc/sys/diag
mtd unlock linux
mtd erase OpenWrt
jffs2root --move
else
mtd unlock rootfs
mount -o remount,rw /dev/root /
fi
else
if [ -z "$(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
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