Help - USB Drive will not mount

Discussion in 'MacBook Air' started by Logo123, Mar 15, 2014.

  1. Logo123 macrumors newbie

    Joined:
    Nov 13, 2013
    #1
    Folks
    I have a 128GB USB 3 drive
    It has a lot of my information hosted on it.
    It had 02 partitions on it. One was Mac and other was ExFAT.
    It was working fine till a couple of hours.
    I copied some files on it and then attached it to my Samung Galaxy Note 2 using an OTG cable.
    IT did not read on the Samsung and when I now put it back into my MacBook Air, the drives dont Mount. I have been trying to understand what has happened but I just cant figure it.
    I tried fixing them through Disk Utility but I cant resolve the issue.
    Any help will be very welcome.
    Many thanks
    Rahul:confused:
     
  2. Dweez macrumors 65816

    Dweez

    Joined:
    Jun 13, 2011
    Location:
    Down by the river
    #2
    When using Disk Utility what do you see when the drive is connected to the mac? How did you attempt to fix the drive via Disk Utility?
     
  3. Logo123 thread starter macrumors newbie

    Joined:
    Nov 13, 2013
    #3
    USD Drive Will Not Mount

    Hi
    I can see the USB Drive in the Disk Utility.
    I can see my 02 partitions but I am unable to 'mount' either of the 02 partitions.
    I tried to Erase the partitions and that does not work.
    I tried to Verify Disk and that does not work.
    I tried Repair Disk on either of the partitions and that does not work.
    Nothing seems to work unfortunately.
    I am wondering if the disk is completely smoked.
    Happy to share screenshots as well.

    Regards
    Rahul
     
  4. cjgonzales1900 macrumors regular

    Joined:
    Jan 10, 2009
    #4
    Do you need the info on the drive? I am assuming not since you already tried to erase them. Try repartitioning the drive into 1 partition and if it reads repartition it into the 2 separate partitions again and don't connect it to your phone lol
     
  5. Logo123 thread starter macrumors newbie

    Joined:
    Nov 13, 2013
    #5
    Partitions

    Hi.
    I tried to partition them but I am unable to do so because the system does not allow me to 'Apply' the changes.
    Not sure what I can do further.
    Any ideas. Have attached some screenshots.
    Regards
    Rahul
     

    Attached Files:

  6. damidget macrumors regular

    Joined:
    Aug 3, 2013
    Location:
    Brisbane, Australia
    #6
    The whole USB is a Master Boot Record, which, I think, is your problem.
     
  7. Logo123 thread starter macrumors newbie

    Joined:
    Nov 13, 2013
    #7
    Master Boot Record

    So how do I fix it. Is my USB Drive toast or can I recover it.
    The data is toast but I would hate to lose my USB Drive.
    It is a 128 GB portable.
    Thanks
    Rahul
     
  8. blueroom macrumors 603

    blueroom

    Joined:
    Feb 15, 2009
    Location:
    Toronto, Canada
    #8
    I've had almost new Corsair USB flash drives fail. Contact Corsair about warranty.
     
  9. Logo123 thread starter macrumors newbie

    Joined:
    Nov 13, 2013
    #9
    Usb - mbr

    So does this mean that the USB drive is toast and cant be recovered?
    Rahul
     
  10. Dweez macrumors 65816

    Dweez

    Joined:
    Jun 13, 2011
    Location:
    Down by the river
    #10
    At this point it seems that you don't care about the data on the device, correct?

    When attempting to create a new partition, you need to give the new partition a name and a size. Then select options and change the partition type to GUID vs MBR partition. Then see if you can apply the chances. I don't think it'll make a difference whether it's MBR or GUID, but see if changing things up has any affect.

    Shooting from the hip here...
     
  11. Redbull916 macrumors member

    Redbull916

    Joined:
    Mar 27, 2012
    Location:
    Brighton, UK
    #11
    I keep getting the same issue, the way to fix it is to plug it into a windows machine and run check disk on the windows partition.

    it's a pain in the behind, as I have 1TB of data on it, and don't want to format it again.
     
  12. Geewhizz macrumors member

    Geewhizz

    Joined:
    Mar 16, 2014
    #12
    Finder / Preferences / General / tick the hard drive box
    That should bring it on the desktop,
     
  13. Logo123 thread starter macrumors newbie

    Joined:
    Nov 13, 2013
    #13
    Tried It Again

    Folks
    Thank you for your suggestions.
    I plugged it into a Windows machine. The PC initially recognised the drive and then stopped recognising the drive.
    I tried formatting it but it would not format the drive. Tried a couple of times but then gave up.
    Any further ideas?
    Regards
    Rahul
     
  14. Dweez macrumors 65816

    Dweez

    Joined:
    Jun 13, 2011
    Location:
    Down by the river
    #14
    It sounds to me as though your drive may be on its death bed...
     
  15. Logo123 thread starter macrumors newbie

    Joined:
    Nov 13, 2013
    #15
    Death Bed

    That is what I fear as well.
    The question is whether I send it in for replacement (with the data still being hosted on it) or keep it with me (absorb the loss but data remains with me).
    R
     
  16. firedept macrumors 603

    firedept

    Joined:
    Jul 8, 2011
    Location:
    Somewhere!
    #16
    If you can not get it to mount, then it is most unlikely that the manufacturer would even try. Even if they did, it would be to see what was causing the issues.

    Do you have any personal info or highly confidential info on it that you would be afraid of someone seeing? Can you even see the info on it? If not, I would have it replaced. Just my opinion.
     
  17. blueroom macrumors 603

    blueroom

    Joined:
    Feb 15, 2009
    Location:
    Toronto, Canada
    #17
    Flash USB drives are pretty easy to wear out unlike SSDs which can map out bad sectors plus make an effort to spread out writes over different cells.
     

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