In-session disk utility finds corruption but recovery mode doesn't?

Discussion in 'macOS Sierra (10.12)' started by UKPoliticsGuy, Feb 26, 2017.

  1. UKPoliticsGuy macrumors regular

    May 3, 2009

    Macbook Pro Late 2013 user.

    When I run disk utility on my main drive it finds corruption and asks me to go on to recovery mode to fix it.

    Problem is: I go on to recovery mode, run disk utility and it says there's no problem!

    What's going on?!
  2. mfram macrumors 65816

    Jan 23, 2010
    San Diego, CA USA
    Running a file system check on a running, mounted file system is not reliable because of caching in the operating system. I would ignore the results on the boot drive when not running in recovery mode.
  3. UKPoliticsGuy thread starter macrumors regular

    May 3, 2009
    I see. Thank you!

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