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  1. #1

    Help, I can't mount USB devices

    Hi again,

    Something very strange has happened. For some reason when I plug in a USB device into my F12 rig up pops a error saying,

    Unable to mount <name of device> file system
    Not Authorised
    When I try to mount from the CLI I get,

    mount: can't find /dev/sdb1 in /etc/fstab or /etc/mstab
    I'm not really sure what this is telling me or what I need to do to fix it.


  2. #2
    Linux Guru
    Join Date
    Oct 2007
    Tucson AZ
    Is this a change? When you previously plugged in a USB device, was it recognized and now it is not?

    Are you doing the mount command as root?
    What command do you use to mount manually?

  3. #3
    Yeah it previously worked fine, I'd plug a usb stick in and then up would pop the filesystem contents.

    A manual mount can only be done as root, I get the message quoted second in my first post.

    The only way I can navigate a connected device is to mount manually using "mount /dev/sdb1 /mnt"

  4. $spacer_open
  5. #4
    Linux Guru reed9's Avatar
    Join Date
    Feb 2009
    Boston, MA
    If you're doing mount -a, then it mounts according to your fstab file. Normally you would not have an entry for a USB stick in fstab, since HAL takes care of mounting.

    That error usually indicates something weird with your consolekit/polickity session.

    The Arch wiki entry on HAL has some possible solutions.

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