procd: update to latest git HEAD
[openwrt/openwrt.git] / package / system / procd / files / nand-preinit.sh
1 #!/bin/sh
2 # Copyright (C) 2014 OpenWrt.org
3
4 nand_takeover() {
5 . /lib/upgrade/nand.sh
6 mtd=$(find_mtd_index "$CI_UBIPART")
7 esize=$(cat /proc/mtd | grep mtd$mtd |cut -d" " -f 3)
8 [ -z "$esize" ] && return 1
9 esize=$(printf "%d" 0x$esize)
10 for a in `seq 0 64`; do
11 mtd -o $((a * esize)) -l 400 dump /dev/mtd$mtd > /tmp/takeover.hdr
12 MAGIC=$(dd if=/tmp/takeover.hdr bs=1 skip=261 count=5 2> /dev/null)
13 SIZE=$(printf "%d" 0x$(dd if=/tmp/takeover.hdr bs=4 count=1 2> /dev/null | hexdump -v -n 4 -e '1/1 "%02x"'))
14 [ "$MAGIC" = "ustar" ] && {
15 mtd -o $((a * esize)) -l $((SIZE + 4)) dump /dev/mtd$mtd | dd bs=1 skip=4 of=/tmp/sysupgrade.tar
16 nand_do_upgrade_stage2 /tmp/sysupgrade.tar
17 }
18 done
19 }
20
21 boot_hook_add initramfs nand_takeover