Receiving error messages after formatting drives?

Discussion in 'macOS Sierra (10.12)' started by stanw, Apr 4, 2018.

  1. stanw macrumors 6502a

    Joined:
    Aug 29, 2007
    #1
    I have formatted several drives recently with Sierra as Mac OS Extended Journaled Encrypted and each item I receive an error, and after reformatting a second time it works. Any idea why this is happening? So far, it has happened with four separate drives.

    Thanks.
     
  2. BrianBaughn macrumors 603

    BrianBaughn

    Joined:
    Feb 13, 2011
    Location:
    Baltimore, Maryland
    #2
    I've had issues like that just trying to format unencrypted. Second attempt usually works. Seems like Disk Utility has trouble unmounting the drive...but I don't know.

    So...it's not just you.
     

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