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openwrt-xburst/package/base-files/brcm/sbin/mount_root
nbd 85668687d8 add failsafe mode and mini_fo mounting support for brcm-2.4 and brcm-2.6
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@5544 3c298f89-4303-0410-b956-a3cf2f4a3e73
2006-11-17 03:07:10 +00:00

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#!/bin/sh
# Copyright (C) 2006 OpenWrt.org
is_dirty() {
grep Broadcom /proc/cpuinfo >&- || return 1
OFFSET="$(($(hexdump -v /dev/mtdblock/1 -s 20 -n 2 -e '"%d"')-1))"
return $(hexdump -v /dev/mtdblock/1 -s $OFFSET -n 1 -e '"%d"')
}
if [ "$1" != "failsafe" ]; then
mtd unlock linux
mount | grep jffs2 >&-
if [ $? = 0 ] ; then
mount -o remount,rw /dev/root /
else
. /bin/firstboot
is_dirty
[ $? != 0 ] && {
echo "switching to jffs2"
mount /dev/mtdblock/4 /jffs -t jffs2
fopivot /jffs /rom
} || {
echo "jffs2 not ready yet; using ramdisk"
ramoverlay
}
fi
fi
mkdir -p /dev/pts
mount none /dev/pts -t devpts 2>&-
grep sysfs /proc/filesystems >/dev/null && mount -t sysfs none /sys 2>&-