;;
esac
+
first=true
for dev in $(btrfs fi show / | sed -rn 's#^\s*devid\s.*\s([^0-9 ]+)\S+$#\1#p' \
|sort); do
- dev+=4
+
+ # Decide which is my grub_ext partition. see partition.DEFAULT file
+ # for details
+ if [[ $(blockdev --getsize64 ${dev}4) == 8388608 ]]; then
+ # Old partition scheme
+ grub_extn=${dev}4
+ elif [[ $(blockdev --getsize64 ${dev}5) == 8388608 ]]; then
+ grub_extn=${dev}5
+ else
+ grub_extn=${dev}7
+ fi
+ fi
mount $dev /mnt
if $first; then
if [[ -e /mnt/grubenv ]]; then