I've got a Gentoo install using a GPT partition table and Legacy boot using Grub2. There is a single /root parition and a single swap partition on the drive.
I did not create a bios-boot partition at the start of the disk, so I had to force grub2 to install using block-lists. I'd like to fix that now. This requires that I move the ext4 root partition towards the end of the drive to create 2MB of free space at the start of the drive for a new bios-boot partition. I see that Gnu parted no longer has a move command. However, GParted apparently does. Can GParted move an ext4 filesystem to a destination location that overlaps its starting location? For example, I have a 500GB partition containing an ext4 filesystem starting at sector 2048 (1MiB). I want to move that filesystem so that it starts at sector 3*2048 (3MiB). Can that be done in-place? Or should I just back up the filesystem to a second drive and start from scratch?
