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ipq806x: EA8500 fix sysupgrade over stock firmware

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When running sysupgrade for the first time over the second partition
(that still had stock firmware) the rootfs wasn't flashed as there
wasn't enough space.
This happend because stock also uses UBI, but the volume name wasn't
recognised and wasn't deleted before flashing.

Signed-off-by: Adrian Panella <ianchi74@outlook.com>
This commit is contained in:
Adrian Panella 2016-12-08 02:41:58 -06:00 committed by John Crispin
parent 96a7ee3c80
commit d700c120bf
1 changed files with 26 additions and 4 deletions
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30
target/linux/ipq806x/base-files/lib/upgrade/linksys.sh
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@ -55,11 +55,36 @@ platform_do_upgrade_linksys() {
CI_UBIPART="rootfs2"
fi
# remove "squashfs" vol (in case we are flashing over a stock image, which is also UBI)
local mtdnum="$( find_mtd_index "$CI_UBIPART" )"
if [ ! "$mtdnum" ]; then
echo "cannot find ubi mtd partition $CI_UBIPART"
return 1
fi
local ubidev="$( nand_find_ubi "$CI_UBIPART" )"
if [ ! "$ubidev" ]; then
ubiattach -m "$mtdnum"
sync
ubidev="$( nand_find_ubi "$CI_UBIPART" )"
fi
if [ "$ubidev" ]; then
local squash_ubivol="$( nand_find_volume $ubidev squashfs )"
# kill volume
[ "$squash_ubivol" ] && ubirmvol /dev/$ubidev -N squashfs || true
fi
# complete std upgrade
nand_upgrade_tar "$1"
}
[ "$magic_long" = "27051956" ] && {
# check firmwares' rootfs types
local target_mtd=$(find_mtd_part $part_label)
local oldroot="$(linksys_get_root_magic $target_mtd)"
local newroot="$(linksys_get_root_magic "$1")"
@ -80,9 +105,6 @@ linksys_preupgrade() {
export RAMFS_COPY_BIN="${RAMFS_COPY_BIN} /bin/mkdir /bin/touch"
export RAMFS_COPY_DATA="${RAMFS_COPY_DATA} /etc/fw_env.config /var/lock/fw_printenv.lock"
[ -f /tmp/sysupgrade.tgz ] && {
cp /tmp/sysupgrade.tgz /tmp/syscfg/sysupgrade.tgz
}
}
append sysupgrade_pre_upgrade linksys_preupgrade