The system is seemingly running fine, yet a recommended First Aid repair failed. What's my next step? I Googled this deeply and couldn't find a current, relevant pointer. Any tips appreciated!

  • 2
    How did it fail? What was the error message, if any? Maybe add a snippet of the Disk Utility Log to your question. Oct 2, 2015 at 12:48

2 Answers 2


Sorry, I don't have a good answer. The problem went away when I was trying to collect more data.

  • Thanks for posting. Knowing some issues are transient is actually a big help.
    – bmike
    Oct 2, 2015 at 19:31

You are pretty light on details but generally speaking when this happens you should boot into recovery mode (Command R) when booting the Mac and go into Disk Utility and try to repair from there.

Failing that you may have to go with a 3rd-party disk repair tool. My go-to is DiskWarrior, there are others that work well too.

  • I did go to DiskUtility in recovery mode. That's where the repair failed. But because I was in recovery mode I didn't know how to collect the specific errors to share here. Would they have been stored somewhere that I can retrieve them, because I can't find them,,,
    – pitosalas
    Oct 2, 2015 at 17:32
  • I ran it again in Recovery mode, used my iPhone to take pictures of the messages. ... and the error didn't happen again :)
    – pitosalas
    Oct 2, 2015 at 17:42

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