2006-2008 MacBooks:Ģ008 MacBook Air (MacBookAir 1,1) Known Issues The 2007 iMac 7,1 is compatible if the CPU is upgraded to a Penryn-based Core 2 Duo, such as a T9300. Machines that ARE NOT supported: 2006-2007 Mac Pros, iMacs, MacBook Pros, and Mac Minis: MacPro1,1 MacPro2,1 iMac4,1 iMac5,x iMac6,1 iMac7,1 MacBookPro1,1 MacBookPro2,1 MacBookPro3,1 Macmini1,1 Macmini2,1 Macmini5,x (systems with AMD Radeon HD 6xxx series GPUs will be almost unusable when running Catalina.).Late-2008 or newer MacBook Air or Aluminum Unibody MacBook:Įarly-2009 or newer Mac Mini or white MacBook: iMac12,x (systems with AMD Radeon HD 5xxx and 6xxx series GPUs will be almost unusable when running Catalina.).iMac11,x (systems with AMD Radeon HD 5xxx and 6xxx series GPUs will be almost unusable when running Catalina.).System Compatibility Early-2008 or newer Mac Pro, iMac, or MacBook Pro: When installing, ensure your system is plugged in to power, or the update will not be installed. If you have NOT previously installed High Sierra, you can download and install this package to install the latest BootROM version. Important InfoĪPFS BootROM Support: If you have a machine that supports High Sierra natively, you MUST ensure you have the latest version of the system's BootROM installed. ![]() Do not attempt to install macOS Catalina on computers that are in the Not Supported list. Also consider creating a Time Machine backup before proceeding with an installation and look through System Compatibility section. MacUpdate team strongly suggests not to install macOS Catalina if you only have one computer or if it is your main machine. It can help you create a bootable USB drive that can be used to install macOS Catalina on Mac computers older than mid 2012. Otherwise your computer will be unusable until you reapply the patches.MacOS Catalina Patcher lets you install macOS Catalina on Mac computers that are no longer officially supported. It’s all very easy to do, just so long as you have the stick with you. You then boot it from the stick, and you can then run the macOS Post Install tool again. It will then prompt you for the boot drive. After the computer fails to boot, you will need to force shut it down (hold the power button for about 10 seconds), and then restart it (with the USB stick inserted) whilst holding down the option key. It’s because the patches have been over-written. In my case, two Mojave updates have been released since I installed it on my unsupported MacBook Pro, and each time the computer will not boot after the update is installed. Don’t erase it and use it for somethings else. The USB stick you prepare with the patcher tool should be kept on hand.
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