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I have a late-2013 Retina Macbook Pro running Sierra 10.12.5 with a myriad of issues that I've been trying to work out. Today's problem: First Aid says there are problems with the partition map that might prevent booting, and to fix them, I need to run First Aid from Recovery. Easy enough.

So I boot into Recovery and run First Aid and get the same message: run First Aid from Recovery, even though I'm already in Recovery. I get the same message in Internet Recovery and when running Disk Utility off an external macOS installer USB. How can I get First Aid to run in Recovery?

  • The error message might be dumb. What happens when you repair the Macintosh HD, then the Disk that contains the HD, then the Macintosh HD a second time? Clean run the final time? – bmike Sep 30 '17 at 23:03
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I think it means restart from Internet recovery. Because the disk containing the recovery partition you are running disk first aid from needs repair. So reboot with command-option-R or shift-command-option-R and Give Ethernet or WiFi password as needed.

This just happened to me.

edit to fix key sequence.

  • It's CMD+ALT+R. This works fine though, the message you get from Disk Util is really bad. – Marv Oct 2 '17 at 0:34
  • @Marv correct. I updated this (I'd prefer to use option than alt, despite what the paint says) – Steven R. Loomis Oct 13 '17 at 19:33
  • I first tried command+option+r and that showed the Internet Recovery globe animation, but still gave me the same error. I then tried command+shift+option+r and that showed the same globe animation, but then started in me in an older recovery version that allowed me to repair the disk. – donut Sep 25 '18 at 15:35
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Restart your Mac in Recovery Mode by holding down Cmd+R immediately after the chime. You'll booth into Recovery Mode and you'll see Disk Utility as an option. Run Disk Utility, select Macintosh HD and run First Aid.

More details: https://support.apple.com/en-us/HT201314

  • 2
    You did not answer his question. He was already in Recovery Mode. – Gray Adams Aug 9 '17 at 18:47
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Mount the drive below the physical drive name then check that via first aid worked well for me

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