mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-26 00:41:17 +00:00
5ece16fd23
Enalbe builtin support for FAT filesystem as we need to mount boot partition to store sysupgrade.tgz there Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
68 lines
1.8 KiB
Bash
68 lines
1.8 KiB
Bash
platform_check_image() {
|
|
true
|
|
}
|
|
|
|
platform_copy_config() {
|
|
local partdev
|
|
|
|
if export_partdevice partdev -1; then
|
|
mount -t vfat -o rw,noatime "/dev/$partdev" /mnt
|
|
cp -af "$CONF_TAR" /mnt/
|
|
umount /mnt
|
|
fi
|
|
}
|
|
|
|
platform_do_upgrade() {
|
|
local diskdev partdev ibs diff
|
|
|
|
if export_bootdevice && export_partdevice diskdev -2; then
|
|
sync
|
|
if [ "$SAVE_PARTITIONS" = "1" ]; then
|
|
get_partitions "/dev/$diskdev" bootdisk
|
|
|
|
#get block size
|
|
if [ -f "/sys/block/$diskdev/queue/physical_block_size" ]; then
|
|
ibs="$(cat "/sys/block/$diskdev/queue/physical_block_size")"
|
|
else
|
|
ibs=512
|
|
fi
|
|
|
|
#extract the boot sector from the image
|
|
get_image "$@" | dd of=/tmp/image.bs count=1 bs=512b
|
|
|
|
get_partitions /tmp/image.bs image
|
|
|
|
#compare tables
|
|
diff="$(grep -F -x -v -f /tmp/partmap.bootdisk /tmp/partmap.image)"
|
|
if [ -n "$diff" ]; then
|
|
echo "Partition layout is changed. Full image will be written."
|
|
ask_bool 0 "Abort" && exit
|
|
|
|
get_image "$@" | dd of="/dev/$diskdev" bs=4096 conv=fsync
|
|
return 0
|
|
fi
|
|
|
|
#write uboot image
|
|
get_image "$@" | dd of="$diskdev" bs=1024 skip=8 seek=8 conv=notrunc
|
|
#iterate over each partition from the image and write it to the boot disk
|
|
while read part start size; do
|
|
part="$(($part - 2))"
|
|
if export_partdevice partdev $part; then
|
|
echo "Writing image to /dev/$partdev..."
|
|
get_image "$@" | dd of="/dev/$partdev" ibs="$ibs" obs=1M skip="$start" count="$size" conv=fsync
|
|
else
|
|
echo "Unable to find partition $part device, skipped."
|
|
fi
|
|
done < /tmp/partmap.image
|
|
|
|
#copy partition uuid
|
|
echo "Writing new UUID to /dev/$diskdev..."
|
|
get_image "$@" | dd of="/dev/$diskdev" bs=1 skip=440 count=4 seek=440 conv=fsync
|
|
else
|
|
get_image "$@" | dd of="/dev/$diskdev" bs=4096 conv=fsync
|
|
fi
|
|
|
|
sleep 1
|
|
fi
|
|
}
|