USB flash drive won't show up in Finder but shows up in Disk Utility

Discussion in 'OS X Mavericks (10.9)' started by longthizzz, Sep 18, 2014.

  1. longthizzz macrumors regular

    Mar 1, 2011
    For some reason, my portable hard drive and USB memory stick won't show up under the Finder Devices but shows in disk utility . I updated the preferences for Finder for devices and it still doesn't show up.

    i have check the pref under the finder - general - i checked it all.
    also under the sidebar , i have also checked it all

    in disk utility under first aid ,
    when i go under verify , it says The partition map appears to be OK but
    when i go under repair : it says Error: Partition map repair failed while adjusting structures to fit current whole disk size.

    i have very important family pictures on my flash drive that i do not want to loose , i have a bad feeling that the flash drive is corrupted and i might need to wipe it clean ....
  2. Bruno09 macrumors 68020

    Aug 24, 2013
    Far from here

    this is "just in case" :

    Hover your mouse over the word "Devices" in the OS X Finder (as here "Favorites" in this screenshot) and then click on the word "Show" that appears.


    Also : if you minimize the Finder window, your USB drive should be on the desktop.
  3. longthizzz, Sep 18, 2014
    Last edited: Sep 18, 2014

    longthizzz thread starter macrumors regular

    Mar 1, 2011
    yes i check that , it was the first thing i checked for .
    and both , no luck
    i used disk drill , the files are still there and i can preview them but that's all i can do ... is there a free- disk recovery software

    now it says i need to update the usb .. what I'm so confused

    Attached Files:

  4. bobdamnit macrumors regular

    Mar 26, 2014
    See if they show up in /Volumes.

    You can do this two ways:

    1. Open Terminal (/Applications/Utilities/ and type the following:
    If the drive shows up, its mounting properly just not displaying on your desktop or in Finder/Devices. If it doesnt, I'm not sure how to proceed. But I bet it does, because it shows up in Disk Utility.

    2. Go here in the Finder menu:
    It may be that you used a certain script to allow native Mavericks NTFS writing. Said script will disable HDD's and USB drives from showing in Finder/Devices/Desktop. They will only appear in "Volumes".
  5. longthizzz thread starter macrumors regular

    Mar 1, 2011

    both methods don't work any other suggestions
  6. bobdamnit macrumors regular

    Mar 26, 2014
    Hook them up to Windows and pull the data off if you can. Then format them and retry in OS X.

    I'm seriously at a loss here.
  7. longthizzz thread starter macrumors regular

    Mar 1, 2011
    Ya . It was the first thing I try. When you plug it into a. Windows , it doesn't do anything
  8. Dawgseep macrumors newbie

    Mar 24, 2015
  9. robertmani macrumors newbie

    Mar 25, 2015

    Hi longthizzz,

    If you have still problem with usb, please let me know I will guide you with steps just you need to follow these.

  10. Bomb Bloke macrumors regular

    Bomb Bloke

    Feb 12, 2015
    Tasmania (AU)
    Notice how, in Disk Utility, the name of the volume stored on the USB drive is written in grey?

    That means the tool knows there's a partition on the drive, but it's not currently mounted (meaning it's not "ready for use" by the OS). Normally OS X would mount the volume automatically, but in this case it's unable to do so (likely because the volume is corrupted).

    You could of course try the "mount" button, but odds are you'll either get no response, or a lengthy pause followed by an "I can't do that, Dave" error.

    Odds are Windows is acting in a similar manner for similar reasons. That OS would likely still show the drive in its Disk Management tool, even if it doesn't show it in Windows Explorer.

    Personally, I would be aiming tools such as PhotoRec or Recuva at the drive. You'll likely need to reformat it before it'll work "normally" again (assuming it's even "fixable"), but these programs stand a high chance of extracting your files before you get to that step.

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