19a6f3dd11
if the initramfs kernel and payload were flashed in one block, the payload might not be at the start of the ubi partition due to bad blocks inside the kernel partition. Signed-off-by: John Crispin <blogic@openwrt.org> SVN-Revision: 43513
21 lines
740 B
Bash
21 lines
740 B
Bash
#!/bin/sh
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# Copyright (C) 2014 OpenWrt.org
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nand_takeover() {
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. /lib/upgrade/nand.sh
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mtd=$(find_mtd_index "$CI_UBIPART")
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esize=$(cat /proc/mtd | grep mtd$mtd |cut -d" " -f 3)
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[ -z "$esize" ] && return 1
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esize=$(printf "%d" 0x$esize)
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for a in `seq 0 64`; do
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mtd -o $((a * esize)) -l 400 dump /dev/mtd$mtd > /tmp/takeover.hdr
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MAGIC=$(dd if=/tmp/takeover.hdr bs=1 skip=261 count=5 2> /dev/null)
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SIZE=$(printf "%d" 0x$(dd if=/tmp/takeover.hdr bs=4 count=1 2> /dev/null | hexdump -v -n 4 -e '1/1 "%02x"'))
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[ "$MAGIC" = "ustar" ] && {
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mtd -o $((a * esize)) -l $((SIZE + 4)) dump /dev/mtd$mtd | dd bs=1 skip=4 of=/tmp/sysupgrade.tar
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nand_do_upgrade_stage2 /tmp/sysupgrade.tar
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}
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done
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}
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boot_hook_add initramfs nand_takeover
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