I may be wrong, but GPT Disk Labels is a IA-64 thing.
From what I learned by reading technical papers, IA-32 BIOSes does not know how to find the boot sector on theses disks because its structure is different from the MSDOS disk label.
At least, you need a GPT aware BIOS in your IA-32 motherboard.
But as I said, I may be wrong. I have no personal experience with IA-64 or GPT disks.
Last edited by marozsas; 07-12-2007 at 08:51 PM.