I'm trying a Mountain Lion virtualbox install on Windows 7 using your image and hackboots. Like some other people, hackboot is fine, but I immediately hang on booting the image, with the last line being boot args = ...
I've tried all sorts of virtualbox config changes, nothing changes.
I'm using a haswell 4770K on Gig Z87X-UD5H mobo with radeon 7870. Is there anything about my setup that requires special configs, or that is known not to work?
Thanks for any help you can give!