I am going from MBR disks to GPT disks and I am having problems online enlarging the GPT disk. I do not use LVM. I had a way of doing that online with MBR but with GPT he complains about the backup GPT table not being at the end of the disk. Can someone give me a clue on how to properly online enlarge a GPT disk/partition? Partition on it is EXT4 at the moment. I can get it to work when parted fixes the problem but I want to script it and that seems not possible at this moment.