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Thread: Does shutdown unmount drives ?

  1. #1
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    Does shutdown unmount drives ?

    If you use the menu option to shutdown the computer, does it unmount removable drives before shutting down? Or will I lose or corrupt data this way?

    Reason I ask, is with the new 8.04, I'm unable to unmount any of my Western Digital USB Passport drives by right clicking on their desktop icons.

    Thanks,

    Scratches

  2. #2
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    Re: Does shutdown unmount drives ?

    yeh its usually unmounted during shutdown, I would not worry about it
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  3. #3
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    Re: Does shutdown unmount drives ?

    Yeah its unmounted.

  4. #4
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    Re: Does shutdown unmount drives ?

    yes and for ur unmounting problem, it may still show the icon, but it's ummounted or should be and when double-clicking the icon it should auto-mount it.
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  5. #5
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    Re: Does shutdown unmount drives ?

    I've tested it. Shutdown DOES NOT safely unmount USB drives before shutting down the computer. I copied 2 directories to a usb western digital passport, then used the menu shutdown (quit). After reboot there was no data on the passport drives.

    I can't believe this unmount bug isn't hotfixed already.

    Scratches

  6. #6
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    Re: Does shutdown unmount drives ?

    Have you tried dismounting the device from the terminal?

    First, find the device name by typing
    Code:
    mount
    Say it's /dev/sdb1. Then run
    Code:
    sudo umount -v /dev/sdb1
    Do you get any error messages?
    ...

  7. #7
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    Re: Does shutdown unmount drives ?

    Quote Originally Posted by Scratches View Post
    If you use the menu option to shutdown the computer, does it unmount removable drives before shutting down? Or will I lose or corrupt data this way?

    Reason I ask, is with the new 8.04, I'm unable to unmount any of my Western Digital USB Passport drives by right clicking on their desktop icons.
    Shutdown does usually unmount all drives first.

    However, if you can't unmount, then shutdown will not be able to either.

    This is bizarre - I've just installed 8.04 (Ubuntu AMD64), and my WD Passport works fine.

    Must be Thunar misbehaving in XFCE (I have had similar problems of being unable to unmount with Xubuntu 7.10 on a different machine, which ended up corrupting all my files).

  8. #8
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    Re: Does shutdown unmount drives ?

    Quote Originally Posted by mali2297 View Post
    Have you tried dismounting the device from the terminal?

    First, find the device name by typing
    Code:
    mount
    Say it's /dev/sdb1. Then run
    Code:
    sudo umount -v /dev/sdb1
    Do you get any error messages?
    I get this,
    umount: /media/WD Passport: device is busy

    This is a fresh install of xubuntu 8.04

  9. #9
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    Re: Does shutdown unmount drives ?

    Further troubleshooting...

    Have you tried disabling Thunar volume manager?
    (Go to File Manager Preferences -> Advanced or uninstall the package thunar-volman.)
    ...

  10. #10
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    Re: Does shutdown unmount drives ?

    Quote Originally Posted by Scratches View Post
    I get this,
    umount: /media/WD Passport: device is busy

    This is a fresh install of xubuntu 8.04
    That generally means something is using that directory, ie there is a file open, or a terminal is in that directory. Try doing

    lsof | grep WD

    in terminal.
    It should show whats using it.
    100 buckets of bits on the bus,
    100 buckets of bits,
    Take one down, short it to ground,
    FF buckets of bits on the bus.

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