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Thread: Cannot access to USB or unmount it

  1. #1
    Join Date
    Dec 2009
    Location
    Buenos Aires, Argentina
    Beans
    128
    Distro
    Ubuntu 12.04 Precise Pangolin

    Cannot access to USB or unmount it

    Hello. I've seen a few posts about not being able to see USB.

    I can also see it on computer and gparted.

    lsusb shows me the device:
    [code]Bus 001 Device 013: ID 0930:6545 Toshiba Corp. Kingston DataTraveler 102 Flash Drive / HEMA Flash Drive 2 GB / PNY Attache 4GB Stick[/usb]

    However, I cannot unmount it or access to it. And besides that, it is a 8GB device. Apparently, lsusb recognizes it as a 2 or 4 GB stick (I do not understand what is HEMA or PNY, Google results only taught me that PNY is a memory manufacturer but nothing relevant about HEMA). gparted recognizes it fine (7.46 GiB).

    I cannot just go ahead and format it as it was lent to me and has files that do not belong to me. So, I would like to use it after I backup files in it for trying LiveCDs of some linux-based OSs I have downloaded.

    BTW, I do not want to install wine or anything related to Bill Gates. =P

    Any help would be highly appreciated.

    Happy holidays. =)
    Using Ubuntu since 9.04, loving it since 2010. Still trying to fully understand it. My boxes' HW specs

  2. #2
    Join Date
    Dec 2012
    Beans
    9

    Re: Cannot access to USB or unmount it

    [CODE]
    sudo fdisk -l
    sudo parted -l
    Last edited by howefield; December 30th, 2012 at 08:25 PM. Reason: removing the garbage.

  3. #3
    Join Date
    Sep 2010
    Location
    Sweden
    Beans
    Hidden!

    Re: Cannot access to USB or unmount it

    In order to get a list of plugged in disks, execute the following command.

    Code:
    sudo fdisk -l
    Once you've done that, it should be fairly easy to identify the memory stick. If you can't identify it, post the output in the thread.

    Code:
    sudo mount /dev/sdx ~/dir/usb/
    Use the command mount in order to mount the memory stick. Change /dev/sdx and ~/dir/usb accordingly.

    Then, just enter the directory you specified.

    Edit:

    I just noticed you wanted to unmount it. Just use umount instead.

    Code:
    sudo umount /dev/sdx
    Last edited by gnush; December 30th, 2012 at 08:23 PM.

  4. #4
    Join Date
    Dec 2009
    Location
    Buenos Aires, Argentina
    Beans
    128
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Cannot access to USB or unmount it

    Ok, so I did:

    Code:
    sudo mkdir /media/usb
    And:

    Code:
    sudo mount /dev/sdb1 /media/usb/
    Works great. Thank you and happy new year both of you!
    Last edited by ivotkl; December 30th, 2012 at 08:35 PM.
    Using Ubuntu since 9.04, loving it since 2010. Still trying to fully understand it. My boxes' HW specs

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