In some cases, some upgrades, such as changing the graphics card, or adding more RAM, can make your Mac compatible with the Yosemite OS X, even if it's not officially supported. Make sure your Mac can support the respective OSīefore you get started, verify that you have installed the SFOTT app on the target Mac, that you have downloaded the Yosemite installer, and that you have a USB drive connected to your computer (a 8GB USB should be enough). The script is based on a boot.efi developed by Tiamo at MacRumors, and its goal is to automate the key creation. SFOTT is an AppleScript utility designed to help you prepare a USB disk or media storage device for installing Mountain Lion, Mavericks, or Yosemite on unsupported 32-bit Macs. Mac OS X Mountain Lion, Mavericks, or Yosemite can be installed only on certain Apple computers that come with 64-bit support which means, that if you have an older, 32-bit model you cannot run the latest OS.
