Mac Mini won't recognize my external every cold boot

Discussion in 'Mac mini' started by Nanasaki, Jun 20, 2013.

  1. Nanasaki macrumors 6502

    Nanasaki

    Joined:
    Oct 26, 2010
    #1
    i have a 500GB external HDD attached on my Mac Mini as download drive (USB 3.0). The drive works fine I am sure of. Now here is the problem: every time after cold boot, Mac Mini just won't see my attached external HDD. Open Disk Utility, see nothing. Unplug and plug into the SAME usb port, still won't see. I HAVE to plug into different USB port, then the Mac Mini will see the drive. The Mac Mini is 2011 model running Mountain Lion 10.8.4.
     
  2. philipma1957 macrumors 603

    philipma1957

    Joined:
    Apr 13, 2010
    Location:
    Howell, New Jersey
    #2
    you realize that your 2011 mini is usb2 not usb3?

    try a fw800 drive or a t-bolt drive.

    while the usb3 hdd should be backwards compatible it will be very slow to boot or may not boot at all.
     
  3. opinio macrumors 65816

    Joined:
    Mar 23, 2013
    #3
    I had a similar problem once with an external. Tried everything. I eventually fixed it by reformatting the drive.
     
  4. Nanasaki thread starter macrumors 6502

    Nanasaki

    Joined:
    Oct 26, 2010
    #4
    So did you formatted your drive to HFS+ or FAT? Could it be problem with exFAT... I want to keep as exFAT, because I might need transfer files from/to Windows PC as well.
     
  5. Mr. Retrofire macrumors 601

    Mr. Retrofire

    Joined:
    Mar 2, 2010
    Location:
    www.emiliana.cl/en
    #5
    Alzheimer disease?
     
  6. opinio macrumors 65816

    Joined:
    Mar 23, 2013
    #6
    I never use exFAT because I have Parallels and Linux (and rarely use windows). So yeah it was HFS+.
     
  7. Fishrrman macrumors G3

    Joined:
    Feb 20, 2009
    #7
    "So did you formatted your drive to HFS+ or FAT? Could it be problem with exFAT... I want to keep as exFAT, because I might need transfer files from/to Windows PC as well."

    My advice, others may disagree.

    If you want the drive to be reliable, re-initialize it into "Mac" format, NOT a PC format.

    It's my opinion (and mine only) that you should NEVER trust important Mac data on a "cross-formatted" drive.

    Use some other drive for cross-platform transfers -- a flash drive, another hard drive, etc.
     
  8. Nanasaki thread starter macrumors 6502

    Nanasaki

    Joined:
    Oct 26, 2010
    #8
    Ok, will format to HFS+.... Thank you for the advice
     

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