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Initial commit
2025-06-24 14:35:53 +02:00

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#
# Copyright (C) 2023 Mauri Sandberg
#
# The vendor UBI is split in volumes 0-3. Volumes 0 and 1 contain U-Boot
# environments env1 and env2, respectively. The vendor root file systems
# are in volumes 2 (rootfs_0) and 3 (rootfs_1). Drop the two roots and
# explicitly use rootfs_0 as a boot partition that contains the dtb and the
# OpenWrt kernel. This is because the vendor U-Boot expects to find them there.
# Then continue upgrade with the default method - a SquashFS rootfs will be
# installed and the rest of UBI will be used as an overlay.
# The 'kernel' inside the sysupgrage.tar is an UBIFS image that contains
# /boot/dtb and /boot/kernel. The 'root' is an OpenWrt SquashFS root
. /lib/functions.sh
. /lib/upgrade/nand.sh
dna_do_upgrade () {
tar -xaf $1
# get the size of the new bootfs
local _bootfs_size=$(wc -c < ./sysupgrade-dna_valokuitu-plus-ex400/kernel)
[ -n "$_bootfs_size" -a "$_bootfs_size" -gt "0" ] || nand_do_upgrade_failed
# remove existing rootfses and recreate rootfs_0
ubirmvol /dev/ubi0 --name=rootfs_0 > /dev/null 2>&1
ubirmvol /dev/ubi0 --name=rootfs_1 > /dev/null 2>&1
ubirmvol /dev/ubi0 --name=rootfs > /dev/null 2>&1
ubirmvol /dev/ubi0 --name=rootfs_data > /dev/null 2>&1
ubimkvol /dev/ubi0 --type=static --size=${_bootfs_size} --name=rootfs_0
# update the rootfs_0 contents
local _kern_ubivol=$( nand_find_volume "ubi0" "rootfs_0" )
ubiupdatevol /dev/${_kern_ubivol} sysupgrade-dna_valokuitu-plus-ex400/kernel
fw_setenv root_vol rootfs_0
fw_setenv boot_cnt_primary 0
fw_setenv boot_cnt_alt 0
# proceed to upgrade the default way
CI_KERNPART=none
nand_do_upgrade "$1"
}