For the record, the branch patching grub2 is: https://code.launchpad.net/~tribaal/ubuntu/+source/grub2/+git/grub2/+ref/add-partuuid-override
For the record, the branch patching grub2 is: https:/ /code.launchpad .net/~tribaal/ ubuntu/ +source/ grub2/+ git/grub2/ +ref/add- partuuid- override