Just finished using gdisk to convert my MSDOS partition table to a GPT. Worked perfectly on the first try (whew).
Rebooted with grub2 to discover that grub2 couldn't see my shiny new GPT :( After holding my head in my sweaty palms for a few minutes, I finally realized that grub didn't automatically load its module called part_gpt, so I used the grub shell to load it, and my new GPT was there after all (whew again). I found and loaded the linux kernel from the root partition, which resides in my new GPT, right? You see where this is going, right? The kernel booted nicely -- and then the panic message appeared, because, what else, I forgot to compile in support for GPT :( So now I'm off to boot my gparted rescue CD and try to chroot to the hard disk so I can compile a kernel with GPT support. If that works I'm taking the rest of the day off. (I'm lying.) Good thing I like this kind of fascinating learning experience.
