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Uboot selects which kernel slot to boot based on a flag in the factory mtd partition. Patch ubnt.sh to ensure always flash to kernel1 slot and update flag if required. Signed-off-by: Tim Lunn <tim@feathertop.org> Tested-by: Mauri Sandberg <maukka@ext.kapsi.fi> Link: https://github.com/openwrt/openwrt/pull/15194 Signed-off-by: Petr Štetiar <ynezz@true.cz>
54 lines
1.4 KiB
Bash
54 lines
1.4 KiB
Bash
#
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# Copyright (C) 2015 OpenWrt.org
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#
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. /lib/functions.sh
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#Note: this code also uses some functions from nand.sh, but it is expected to be run by nand.sh, so we are not
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#sourcing it explicitly here
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UBNT_ERX_KERNEL_INDEX_OFFSET=160
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ubnt_update_kernel_flag() {
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local factory_mtd=$1
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local kernel_index=$(hexdump -s $UBNT_ERX_KERNEL_INDEX_OFFSET -n 1 -e '/1 "%X "' ${factory_mtd})
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if [ $kernel_index = "0" ]; then
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echo "Kernel flag already set to kernel slot 1"
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return 0
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fi
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if ! (echo -e "\x00" | dd of=${factory_mtd} bs=1 count=1 seek=$UBNT_ERX_KERNEL_INDEX_OFFSET); then
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echo 'Failed to update kernel bootup index' >&2
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return 1
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fi
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}
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platform_upgrade_ubnt_erx() {
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local factory_mtd=$(find_mtd_part factory)
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if [ -z "$factory_mtd" ]; then
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echo "cannot find factory partition" >&2
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exit 1
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fi
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#Remove volume possibly left over from stock firmware
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local ubidev="$( nand_find_ubi "$CI_UBIPART" )"
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if [ -z "$ubidev" ]; then
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local mtdnum="$( find_mtd_index "$CI_UBIPART" )"
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if [ -z "$mtdnum" ]; then
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echo "cannot find ubi mtd partition $CI_UBIPART" >&2
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exit 1
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fi
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ubiattach -m "$mtdnum"
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sync
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ubidev="$( nand_find_ubi "$CI_UBIPART" )"
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fi
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if [ -n "$ubidev" ]; then
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local troot_ubivol="$( nand_find_volume $ubidev troot )"
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[ -n "$troot_ubivol" ] && ubirmvol /dev/$ubidev -N troot || true
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fi
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ubnt_update_kernel_flag ${factory_mtd} || exit 1
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nand_do_upgrade "$1"
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}
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