mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-30 10:39:04 +00:00
1465bebd74
Add new way of flashing to mmc devices based on rootfs split with loop devices. Signed-off-by: André Valentin <avalentin@marcant.net>
88 lines
1.7 KiB
Bash
88 lines
1.7 KiB
Bash
#
|
|
# Copyright (C) 2016 lede-project.org
|
|
#
|
|
|
|
zyxel_get_rootfs() {
|
|
local rootfsdev
|
|
|
|
if read cmdline < /proc/cmdline; then
|
|
case "$cmdline" in
|
|
*root=*)
|
|
rootfsdev="${cmdline##*root=}"
|
|
rootfsdev="${rootfsdev%% *}"
|
|
;;
|
|
esac
|
|
|
|
echo "${rootfsdev}"
|
|
fi
|
|
}
|
|
|
|
zyxel_do_flash() {
|
|
local tar_file=$1
|
|
local board=$2
|
|
local kernel=$3
|
|
local rootfs=$4
|
|
|
|
# keep sure its unbound
|
|
losetup --detach-all || {
|
|
echo Failed to detach all loop devices. Skip this try.
|
|
reboot -f
|
|
}
|
|
|
|
echo "flashing kernel to /dev/${kernel}"
|
|
tar xf $tar_file sysupgrade-$board/kernel -O >/dev/$kernel
|
|
|
|
echo "flashing rootfs to ${rootfs}"
|
|
tar xf $tar_file sysupgrade-$board/root -O >"${rootfs}"
|
|
|
|
# a padded rootfs is needed for overlay fs creation
|
|
local offset=$(tar xf $tar_file sysupgrade-$board/root -O | wc -c)
|
|
[ $offset -lt 65536 ] && {
|
|
echo Wrong size for rootfs: $offset
|
|
sleep 10
|
|
reboot -f
|
|
}
|
|
|
|
# Mount loop for rootfs_data
|
|
losetup -o $offset /dev/loop0 "${rootfs}" || {
|
|
echo "Failed to mount looped rootfs_data."
|
|
sleep 10
|
|
reboot -f
|
|
}
|
|
|
|
echo "Format new rootfs_data at position ${offset}."
|
|
mkfs.ext4 -F -L rootfs_data /dev/loop0
|
|
mkdir /tmp/new_root
|
|
mount -t ext4 /dev/loop0 /tmp/new_root && {
|
|
echo "Saving config to rootfs_data at position ${offset}."
|
|
cp -v /tmp/sysupgrade.tgz /tmp/new_root/
|
|
umount /tmp/new_root
|
|
}
|
|
|
|
# Cleanup
|
|
losetup -d /dev/loop0 >/dev/null 2>&1
|
|
sync
|
|
umount -a
|
|
reboot -f
|
|
}
|
|
|
|
zyxel_do_upgrade() {
|
|
local tar_file="$1"
|
|
local board=$(cat /tmp/sysinfo/board_name)
|
|
local rootfs="$(zyxel_get_rootfs)"
|
|
local kernel=
|
|
|
|
[ -b "${rootfs}" ] || return 1
|
|
case "$board" in
|
|
nbg6817)
|
|
kernel=mmcblk0p4
|
|
;;
|
|
*)
|
|
return 1
|
|
esac
|
|
|
|
zyxel_do_flash $tar_file $board $kernel $rootfs
|
|
|
|
return 0
|
|
}
|