macOS Recovery process: Disk Utility is Apple’s go-to macOS application for detecting and repairing common disk errors, but it’s a problem if it’s your Mac’s internal disk, and your Mac may not even boot into macOS. Fortunately, in such cases, you can still go from macOS Recovery to Disk Utility.
On Intel-based Max, recovery mode is requested by pressing the Command-R key combination immediately after booting. On the Apple Silicon-powered Max, like the M1 MacBook Pro, the process is a little different, as described in the following steps.
1. Turn on your Mac and press the power button until you see the Startup options window.
2. Click on the gear icon labeled Options.
3. Click Continue.
4. If prompted, select the user and then click Enter ‘Password’.
5. From the Utility window in macOS Recovery, select Disk Utility and click Continue.
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Repair your boot disk with Disk Utility
- From the Disk Utility toolbar, select View -> Show All Devices.
2. The top disk in the sidebar is your internal disk. Below that you will see any vessels and volumes in it. Select the last volume of the disk, and then click the First Aid button.
3. Click Run Disk or Repair to check the volume for errors. If you can not click the button, skip this step for the volume you selected.
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4. After completing the disk utility test, select the next volume or container in the sidebar and run the first aid again. Again do this step for each volume on the disk, and then each container on the disk, and finally the disk itself.
If the disk utility detects an unrepairable error, you must erase the disk and reinstall macOS. If you do not have a specific backup of your data, contact Apple Support Services for further steps.
