![]() ![]() ![]() Choose the bootable installer drive and Enter.This will cause the Mac open in Startup Manager. Restart the Mac while holding the Option/Alt key.Plug the bootable installer into the Mac you wish to update.Choose ‘Create a bootable installer’ from the options.The download (of Catalina) will start – since it’s almost 8GB it is likely to take a while.Download the latest version of the Catalina patch here.The script is part of the patch for macOS Big Sur and changes important settings for booting and system files. After preparing the Mac with the USB stick, start a terminal and enter “/ Volumes / Image Volume / set-vars.sh”. These can be found in the instructions for big-sur-micropatcher. In some cases, there are still tasks to be performed after the installation. Now install macOS from your bootable installer. ![]() Open a terminal window and drag and drop the file into the terminal.After extracting the archive from your download you will find the file “micropatcher.sh”.If you download the Big Sur patcher from GitHub, click on the Code and Download Zip buttons.Follow our guide linked to above to make a bootable installer. This time you can obtain the installation files from this Mac App Store link. The procedure for updating to an incompatible Mac to Big Sur is the same as above. Just beware that Boot Camp Assistant might be broken on Macs that support that app, and other elements you are used to may not work.Ĭheck that the patcher is compatible with your Mac – you should find this information on the patch page (linked above). As above, the download and instructions can be found here. The process is the same if you want to install Monterey on your Mac. How to install Monterey on an unsupported Mac Instead you need to create a USB stick with the new installation files and install the update in that way. Once you have installed macOS Ventura (or whatever version of macOS you choose), updates will appear in Software Updates as soon as they are available. How to install macOS updates on an unsupported Mac We recommend that you follow the steps outlined here if you have any problems. Next you need to select Install macOS, you should see the option Install macOS Ventura in the OpenCore Picker. When the Mac starts up there will be a black screen with a few drive options.Once that has been created you need to reboot your Mac while holding down the Option (Alt) key.(The recommendation is to install on a FAT32 drive. The next step is to choose Install OpenCore to USB/internal drive from the options. ![]()
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