I had to upgrade my Gigabyte GA-Z68X-UD3H-B3 from F9 to F12 using the Q-flash utility and a flash drive.

This is important because older firmwares may not correctly allow the USB drive to boot the computer. You’ll need to make sure that your motherboard has the most recent BIOS firmware installed and the corresponding DSDT file is correctly installed in your /Extras folder. This fix should work for any ATI Radeon 6XXX card but I have only tried it on the 6870.įirst, you need to create the Mountain Lion installer drive using Unibeast according to Step 2 of this guide. Without these additional modifications, the installer hangs at the launch screen indefinitely. Unfortunately, my graphics card (ATI Radeon HD 6870) has had issues with the installation process and requires a few extra steps to get everything working. A typical installation would then simply require booting off the flash drive, selecting the installation drive, and then enjoying the new OS. I used the Unibeast tool from the aforementioned TonyMacx86 community to create a bootable flash drive with the Mountain Lion installer. After installing the $20 update onto my laptop, I finally decided to give it a whirl on my Hackintosh. As with any system update, the Hackintosh community anxiously starts refreshing their favorite websites ( TonyMacx86) in hopes of reading tales of successful installations before attempting it themselves. The release of the latest Apple computer operating system OS X 10.8 ‘Mountain Lion’ has been a resounding success with over 3 million copies sold in less than four days.

Hackintosh lion