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Thread: Mounting & unmounting external drive

  1. #1
    Join Date
    Dec 2013
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    28

    Mounting & unmounting external drive

    I am currently running lubuntu on a netbook from an SD card boot. The HD disk is fried and this gives me a way to use the machine while Im waiting to get a new HD.

    I have successfully mounted an external drive but mustn't have unmounted it properly because now when I try to connect it it says it can't mount because it's already mounted.

    I've googled for help but so far haven't found anything that works. I read a page about how to use udisks but when I try to install it I get an error 'udisks has no installation candidate'.

    Many thanks for any help

  2. #2
    Join Date
    Dec 2013
    Beans
    28

    Re: Mounting & unmounting external drive

    This is the error msg I get in Disks

    Error mounting /dev/sdc1 at /media/lubuntu/My Passport: Command-line `mount -t "ntfs" -o "uhelper=udisks2,nodev,nosuid,uid=999,gid=999,dmas k=0077,fmask=0177" "/dev/sdc1" "/media/lubuntu/My Passport"' exited with non-zero exit status 21: mount: according to mtab, /dev/sdc1 is already mounted on /media/lubuntu/My Passport


    (udisks-error-quark, 0)

  3. #3
    Join Date
    Dec 2013
    Beans
    28

    Re: Mounting & unmounting external drive

    I guess I posted in the wrong place? Didn't give enough info? Or my question is below even absolute beginner level?

    Oh well.

  4. #4
    Join Date
    Apr 2012
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    5,307

    Re: Mounting & unmounting external drive

    Hello and welcome to the forums

    Sometimes questions just slip through the cracks, we're all volunteers and all scattered in different timezones.

    It seems like the device *is* mounted, so what happens if you try to access the contents? for example in a terminal

    Code:
    ls -l /media/lubuntu/My\ Passport
    Note that you will need to 'escape' the space in the name using a backslash - or put it in quotes e.g. "/media/lubuntu/My Passport"

  5. #5
    Join Date
    Dec 2013
    Beans
    28

    Re: Mounting & unmounting external drive

    Many thanks for replying. I know sometimes things just slip by but it had so many views and when it slipped of the first page I felt abandoned....

    Anyway, something strange happened. I just connected the disk to do as you suggest and this time a box popped up asking did I want to open it in file manager - so today it's working fine.

    The immediate problem is solved, and this time I'll try to disconnect properly to avoid a repetition.

    Thanks again.

  6. #6
    Join Date
    Apr 2012
    Beans
    5,307

    Re: Mounting & unmounting external drive

    OK well post back if the problem repeats - those WD Passport drives are a bit of an odd duck, at least if the (Windows-based) encryption / password protection is enabled, iirc they try to mount a kind of virtual CD-ROM 'unlocker' which doesn't work on Linux afaik

  7. #7
    Join Date
    Dec 2013
    Beans
    28

    Re: Mounting & unmounting external drive

    Just to say thanks again - I tried the command you suggested, it lists my files, I tried the umount command then repeated and hey presto, no files.


    It's all good practice for an absolute beginner.

  8. #8
    Join Date
    Oct 2009
    Location
    StartUbuntu
    Beans
    4,245
    Distro
    Ubuntu Gnome Development Release

    Re: Mounting & unmounting external drive

    Welcome to Ubuntu Forums and thanks for using Linux

    If your problem is fixed and you don't have any further Q, please mark this thread as 'Solved' so that everyone knows it is solved and won't go through the posts. Beside, to help others who might run into the same issue - they can find your thread by a google search or www.googlubuntu.com

    Enjoy!

  9. #9
    Join Date
    Dec 2013
    Beans
    28

    Re: Mounting & unmounting external drive

    well, yes it's solved in the sense that I've now plugged the device in & out a few times with no further problems, though I'm not sure why the problem suddenly disappeared.

    Marked as solved in any case

  10. #10
    Join Date
    Dec 2013
    Beans
    3

    Re: Mounting & unmounting external drive

    Here also solved my problem, thank you for your help

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