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  1. #1
    USB thumb drive not mounting
    suku's Avatar
    Member Since
    Feb 23, 2009
    Location
    India
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    3
    Specs:
    Imac, 10.5.7, 2 GHz INtel Core 2 duo, 2 GB DDR2 SDRAM
    USB thumb drive not mounting
    Hi,

    I have 10.4.11, the problem i am facing is that on my MAC when i connect any USB thumb drive it is not showing me in finder or anywhere else. I have checked every setting(s). Bluetooth is working fine keyboard and mouse are good it is only the 3rd USB port which is not working also USB ports on Keyboard are not recognizing any USB device.
    My idea is that it has stopped USB from mounting at startup, hence I am not able to view when i connect any thumb drive. My guess of what someone has done is he used diskutil unmount command.. and the big thing is that i am not very much familiar with terminal commands.
    So any idea how to mount stop that unmounting process from occurring or mount USB at startup. Please assist.

  2. #2
    USB thumb drive not mounting
    hughvane's Avatar
    Member Since
    May 18, 2008
    Location
    Banks Peninsula, New Zealand
    Posts
    3,296
    Specs:
    MacMini 2.4, 8 Gb, OS 10.10 and 10.6; MacBook 2.4, 4 Gb, OS 10.6.8
    Have you used Disk Utility to check the format of the thumb drive (td)? If the td shows up in Disk Utility, but not on desktop, then you should reformat the td with either HFS or MS-DOS, then see if it will mount to desktop on insertion.

  3. #3
    USB thumb drive not mounting
    Collin Bl's Avatar
    Member Since
    Apr 07, 2009
    Location
    Napier NZ
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    3,291
    Specs:
    27 iMac i5, MBP 13 & iMac 20, 2TB dual TC, AppleTV, iPh4S
    Seems some units are pre loaded with Microsoft password protection - take it to a mate with a PC and get it reformatted, then it should show in the Mac

  4. #4
    USB thumb drive not mounting
    dtravis7's Avatar
    Member Since
    Jan 04, 2005
    Location
    Modesto, Ca.
    Posts
    28,479
    Specs:
    iMac late 2007 10.11.b4, iMac 2008 10.10.5, Macbook2007 10.7.5, Mac Mini 10.7.5, iPhone 3GS Note 8!!
    Also never plug a USB drive (Thumb or otherwise) into the Keyboards USB ports. Not enough power.

  5. #5
    USB thumb drive not mounting
    suku's Avatar
    Member Since
    Feb 23, 2009
    Location
    India
    Posts
    3
    Specs:
    Imac, 10.5.7, 2 GHz INtel Core 2 duo, 2 GB DDR2 SDRAM
    I have already thried that when i insert USB it doesn't shows up in Disk Utility, and nowhere else. please advise if there is any command to mount or unmount USB during startup. I guess that's what somebody has done.

    PLEASE HELP

  6. #6
    USB thumb drive not mounting
    hughvane's Avatar
    Member Since
    May 18, 2008
    Location
    Banks Peninsula, New Zealand
    Posts
    3,296
    Specs:
    MacMini 2.4, 8 Gb, OS 10.10 and 10.6; MacBook 2.4, 4 Gb, OS 10.6.8
    Where has this thumb drive been? I mean, how many people on what sort of OS have been using it? If it's been used to share material amongst several people, then anything might have happened to it. It could be that the drive itself has simply failed.

    Collin has given you good advice about using a WinOS computer to check if the drive is still working. If not, and the data on the td is not of great importance, treat yourself to a new drive, they're cheap enough.

  7. #7
    USB thumb drive not mounting
    suku's Avatar
    Member Since
    Feb 23, 2009
    Location
    India
    Posts
    3
    Specs:
    Imac, 10.5.7, 2 GHz INtel Core 2 duo, 2 GB DDR2 SDRAM
    Got your point boss, but the point is the drive is working on my second Imac, My second machine is detecting that same drive and its not windows computer its just another Imac with 10.4.11 so there is nothing wrong with USB drive. even this mac is not detecting new one. Now any suggestions.

  8. #8
    USB thumb drive not mounting
    baggss's Avatar
    Member Since
    Oct 10, 2004
    Location
    Margaritaville
    Posts
    10,310
    Specs:
    27" 3.4 Ghz i7 iMac-13" C2D Macbook-OSX 10.10.2 -64Gb iPad 2-64 Gb iPhone 6+-ATV 2-14Tb of Storage
    Have you tried the thumb drive in the other USB ports? You have not told us. Since we know 2 of them work with the KB/MSE, try one of those ports and see what happens.


  9. #9
    USB thumb drive not mounting
    hughvane's Avatar
    Member Since
    May 18, 2008
    Location
    Banks Peninsula, New Zealand
    Posts
    3,296
    Specs:
    MacMini 2.4, 8 Gb, OS 10.10 and 10.6; MacBook 2.4, 4 Gb, OS 10.6.8
    Well spotted baggss! Yes, the OP stated that it's only USB Port 3 that isn't working [I missed that - smack!]. To Suku, try swapping the other devices, eg. keyboard and mouse about, using either of them in Port 3.

    As far as the terminal command 'diskutil unmount' is concerned, and dealing with the simpler things first, try reformatting the flash drive using your other Mac. You could preserve the contents of the drive to the other Mac as well.

    If USB Port 3 continues not to respond to anything inserted, then we're looking at hardware repair. It's possible that could be achieved with Disk Utility from the original Install disk 1.

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