![]() ![]() Press y and enter to erase all data on the drive so it can be replaced with the Big Sur installer. Open Terminal and type in: sudo /Applications/Install\ macOS\ Big\ Sur\ Beta.app/Contents/Resources/createinstallmedia -volume (make sure to put a space at the end) and then drag in your USB Drive (should be on your desktop) and hit enter.Īfter that, a prompt will come up and ask if you would like to erase your drive and install the installer onto it. (Links above)Īfter you download and run the Install Assistant (Install macOS Big Sur Beta should appear in your applications folder) and extract the Micropatcher (Leave it in your downloads folder), you are ready to make your USB Disk into an installer. Next, you need to download the Installer and Micropatcher. (This shouldn’t be required if you are updating from Catalina, but better safe than sorry) First of all, you should make a Time Machine backup of your current OS if you plan to update from an older MacOS version to Big Sur.
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