Article: UniBeast: Install OS X Mountain Lion on Any Supported Intel-based PC
Hello everyone, I'm in trouble after reinstalling, restart it, and I have left the screen with the apple and the wheel that turns, turns turns turns
What can I do??
I ran into this when updating to 10.8.2, but I just now updated to 10.8.4 and this didn't happen thankfully. Anyway, if no one has answered you, I will tell you what I ran into (your problem could be due to any number of issues... video.... audio....).
First I was told just to reinstall FakeSMC.kext with MultiBeast and I would be fine. But that didn't work for me. I suggest you try it though, because it may work for you and will be a lot easier that what I ended up doing. Read other posts backwards from here - there may be a more recent 'fix' than what I went through last year.
Remember I don't know anything about your system or what could possibly be wrong, but this is what I did.
I had to remove OemSMBIOS.kext, and it was within FakeSMC.kext. To do this, I had to force-stop OS X since it was stuck at the logo/spinning wheel, boot into safe mode using the USB boot drive, then use Terminal under utilities menu to move FakeSMC.kext out of Extensions. If you're not familiar with terminal commands and rooting in your system, you may want to wait for someone else to reply with a better answer. So once I did that, it restarted fine. But I went to FakeSMC.kext, right-click to Show Package Contents, removed OemSMBIOS.kext out of FakeSMC.kext, then re-installed that FakeSMC.kext file using a kext utility.
I took the original FakeSMC.kext out of S/L/E, and it now resides in my Extra folder. I don't know if my hack suffers any bad side effects from the OemSMBIOS.kext being absent (don't see it anywhere), but my system runs fine and About This Mac behaves and displays everything I expect it too.
Lastly, somewhere along this process when either booting from my USB drive or restarting, my screen was stuck on all-white - no apple logo. I read somewhere to quickly press the computer's power button to put it to sleep, then move the mouse or touch a key on the keyboard to wake it up, and it worked! Best 'trick' I learned when recovering from a problem and this happens.
Best of luck.