If you’re having trouble running macOS Big Sur on your M1 MacBook Air, M1 MacBook Pro, or M1 Mac mini, or if you want to start over with a clean operating system install, you’ll need to boot into macOS Recovery. , which is done slightly differently on Apple Silicon Macs compared to Intel machines.
Read on to learn how to boot into macOS Recovery and reinstall macOS 11 Big Sur on your M1 engine machine.
How to get started in macOS Recovery and Reinstall macOS
- Turn on your Mac and keep pressing and holding the power button until you see the Startup Options window.
- Select the speed icon labeled Options,then click on Continue.
- If you are asked to select a user for whom you know the password, select the one you want, click Next,then enter their admin password.
- When macOS Recovery has loaded, select Reinstall macOS from from the utilities window.
- Click on Continue and follow the instructions of the installer.
If the installer gives you the choice to install on Macintosh HD or Macintosh HD Data, choose Macintosh HD.
Once the macOS installation process is underway, your Mac may restart a progress bar several times, and the screen may be blank for a few minutes at a time. These reboot events can be expected and are not something to worry about. If the installer doesn’t see your disk, or says it can’t install on your Mac or volume, you may need to erase the disk first using Disk Utility.
Note that if you erased your Mac M1 before updating it to macOS Big Sur 11.0.1, you might be unable to reinstall macOS from macOS Recovery. A message might say, “An error occurred while preparing to update. Did not customize the software update. Please try again. If this happens, Apple suggests creating a bootable installer using another Mac, otherwise you’ll have to go through a more technical process involving Terminal to restore your Mac.