I've neve used them personally but I know parted can create them and it looks like the kernel option is CONFIG_EFI_PARTITION which is on by default in Debian, I don't have an Ubuntu machine to check ...

There may be times where you've either decided to partition a drive or are finished with a partition and wish to remove it and dedicate the space to another partition. The disk management tool Disk ...

Now with a little bit of searching I've found a Windows based tool that claims it can recover a GUID partition table called Partition Guru Professional Edition (the free version does not handle > 2 TB ...