39 lines
901 B
Plaintext
39 lines
901 B
Plaintext
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#!/bin/sh
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is_dirty() {
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grep Broadcom /proc/cpuinfo >&- || return 1
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OFFSET="$(($(hexdump -v /dev/mtdblock/1 -s 20 -n 2 -e '"%d"')-1))"
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return $(hexdump -v /dev/mtdblock/1 -s $OFFSET -n 1 -e '"%d"')
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}
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size=$(awk '/Mem:/ {l=5242880;print((s=$2/2)<l)?$2-l:s}' /proc/meminfo)
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mount none /tmp -t tmpfs -o size=$size
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if [ "$1" != "failsafe" ]; then
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mtd unlock linux
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mount | grep jffs2 >&-
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if [ $? = 0 ] ; then
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if [ $(cat /proc/mtd | wc -l) = 6 ]; then
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mtd erase OpenWrt
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jffs2root --move
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else
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mount -o remount,rw /dev/root /
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fi
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else
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. /bin/firstboot
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is_dirty
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[ $? != 0 ] && {
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echo "switching to jffs2"
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mount /dev/mtdblock/4 /jffs -t jffs2
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pivot /jffs /rom
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} || {
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echo "jffs2 unusable; using ramdisk"
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ramoverlay
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}
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fi
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fi
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mount none /tmp -t tmpfs -o remount,nosuid,nodev,mode=1777
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mkdir -p /dev/pts
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mount none /dev/pts -t devpts
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mount -t sysfs none /sys 2>&-
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