mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-22 15:02:32 +00:00
b9c1cf1657
This commit fills the void for current OpenWrt installations which will be still on old bootloader version even after "x86: add bootloader upgrade on sysupgrade", since it performs bootloader upgrade only on sysupgrade. To keep all OpenWrt deploynents on the same GRUB version, add preinit hook, which will perform upgrade of the bootloader on first boot after sysupgrade. It's temporary solution and should be deleted, when the first release including this hook will no longer be supported by OpenWrt team. We can assume that all installations should be on current bootolader version and from there sysupgrade routine will be sufficient. Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
121 lines
2.8 KiB
Bash
121 lines
2.8 KiB
Bash
RAMFS_COPY_BIN='grub-bios-setup'
|
|
|
|
platform_check_image() {
|
|
local diskdev partdev diff
|
|
[ "$#" -gt 1 ] && return 1
|
|
|
|
case "$(get_magic_word "$1")" in
|
|
eb48|eb63) ;;
|
|
*)
|
|
echo "Invalid image type"
|
|
return 1
|
|
;;
|
|
esac
|
|
|
|
export_bootdevice && export_partdevice diskdev 0 || {
|
|
echo "Unable to determine upgrade device"
|
|
return 1
|
|
}
|
|
|
|
get_partitions "/dev/$diskdev" bootdisk
|
|
|
|
#extract the boot sector from the image
|
|
get_image "$@" | dd of=/tmp/image.bs count=1 bs=512b 2>/dev/null
|
|
|
|
get_partitions /tmp/image.bs image
|
|
|
|
#compare tables
|
|
diff="$(grep -F -x -v -f /tmp/partmap.bootdisk /tmp/partmap.image)"
|
|
|
|
rm -f /tmp/image.bs /tmp/partmap.bootdisk /tmp/partmap.image
|
|
|
|
if [ -n "$diff" ]; then
|
|
echo "Partition layout has changed. Full image will be written."
|
|
ask_bool 0 "Abort" && exit 1
|
|
return 0
|
|
fi
|
|
}
|
|
|
|
platform_copy_config() {
|
|
local partdev
|
|
|
|
if export_partdevice partdev 1; then
|
|
mount -t ext4 -o rw,noatime "/dev/$partdev" /mnt
|
|
cp -af "$UPGRADE_BACKUP" "/mnt/$BACKUP_FILE"
|
|
umount /mnt
|
|
fi
|
|
}
|
|
|
|
platform_do_bootloader_upgrade() {
|
|
local bootpart
|
|
local diskdev="$1"
|
|
|
|
if export_partdevice bootpart 1; then
|
|
mkdir -p /tmp/boot
|
|
mount -o rw,noatime "/dev/$bootpart" /tmp/boot
|
|
echo "(hd0) /dev/$diskdev" > /tmp/device.map
|
|
|
|
echo "Upgrading bootloader on /dev/$diskdev..."
|
|
grub-bios-setup \
|
|
-m "/tmp/device.map" \
|
|
-d "/tmp/boot/boot/grub" \
|
|
-r "hd0,msdos1" \
|
|
"/dev/$diskdev" \
|
|
&& touch /boot/grub/upgraded
|
|
|
|
umount /tmp/boot
|
|
fi
|
|
}
|
|
|
|
platform_do_upgrade() {
|
|
local diskdev partdev diff
|
|
|
|
export_bootdevice && export_partdevice diskdev 0 || {
|
|
echo "Unable to determine upgrade device"
|
|
return 1
|
|
}
|
|
|
|
sync
|
|
|
|
if [ "$UPGRADE_OPT_SAVE_PARTITIONS" = "1" ]; then
|
|
get_partitions "/dev/$diskdev" bootdisk
|
|
|
|
#extract the boot sector from the image
|
|
get_image "$@" | dd of=/tmp/image.bs count=1 bs=512b
|
|
|
|
get_partitions /tmp/image.bs image
|
|
|
|
#compare tables
|
|
diff="$(grep -F -x -v -f /tmp/partmap.bootdisk /tmp/partmap.image)"
|
|
else
|
|
diff=1
|
|
fi
|
|
|
|
if [ -n "$diff" ]; then
|
|
get_image "$@" | dd of="/dev/$diskdev" bs=4096 conv=fsync
|
|
|
|
# Separate removal and addtion is necessary; otherwise, partition 1
|
|
# will be missing if it overlaps with the old partition 2
|
|
partx -d - "/dev/$diskdev"
|
|
partx -a - "/dev/$diskdev"
|
|
|
|
return 0
|
|
fi
|
|
|
|
#iterate over each partition from the image and write it to the boot disk
|
|
while read part start size; do
|
|
if export_partdevice partdev $part; then
|
|
echo "Writing image to /dev/$partdev..."
|
|
get_image "$@" | dd of="/dev/$partdev" ibs="512" 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
|
|
|
|
platform_do_bootloader_upgrade "$diskdev"
|
|
}
|