I had this same problem. I had Rev1 installed fine so I formatted and installed Rev 2 and it looks like the fixed GUID breaks the installation. However, instead of reinstalling without GUID option I just rebooting and did the -s GUID install. Hopefully there was nothing else happening after the error. If there was I should probably reinstall without any boot loader.

I wasn't able to install the guid after broken install.
I don't remember exactly but there was some kind of aligment error when i executed this line:
dd if=./guid/boot0 of=/dev/diskX

I got this two times so I decided to use rev.1 disk as much as possible.