I'm having a similar problem, I just built a new PC and am trying to install mountain lion and when it starts to load the installer, I get the grey screen that says "You must restart your computer by holding down the power button" I can't seem to get past that screen.
I ran the -v and it says...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.