Kubuntu 16.04 - unable to mount USB disk

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I'm using Kubuntu 16.04 with Plasma 5.8.9.



I'm trying to connect an USB external drive with an ext4 file system but if I try to mount it through KDE's "Device Notifier" I get an error message saying:




"You are not authorised to access this device"




If I mount the partition from console with:



sudo mount /dev/sdb1 /some/mount/point


it works.



Recently I've configured autofs to mount a SMB partition from a remote NAS to a folder in my home directory, don't know if it might be the cause of the problem.
I've removed autofs package to exclude any involvement and rebooted, but it still doesn't work.



I've added my user to the group "dev/sdb1" belongs to, that is "disk" but still cannot access the device.



Any idea on how I can find out what is going on?










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    I'm using Kubuntu 16.04 with Plasma 5.8.9.



    I'm trying to connect an USB external drive with an ext4 file system but if I try to mount it through KDE's "Device Notifier" I get an error message saying:




    "You are not authorised to access this device"




    If I mount the partition from console with:



    sudo mount /dev/sdb1 /some/mount/point


    it works.



    Recently I've configured autofs to mount a SMB partition from a remote NAS to a folder in my home directory, don't know if it might be the cause of the problem.
    I've removed autofs package to exclude any involvement and rebooted, but it still doesn't work.



    I've added my user to the group "dev/sdb1" belongs to, that is "disk" but still cannot access the device.



    Any idea on how I can find out what is going on?










    share|improve this question























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I'm using Kubuntu 16.04 with Plasma 5.8.9.



      I'm trying to connect an USB external drive with an ext4 file system but if I try to mount it through KDE's "Device Notifier" I get an error message saying:




      "You are not authorised to access this device"




      If I mount the partition from console with:



      sudo mount /dev/sdb1 /some/mount/point


      it works.



      Recently I've configured autofs to mount a SMB partition from a remote NAS to a folder in my home directory, don't know if it might be the cause of the problem.
      I've removed autofs package to exclude any involvement and rebooted, but it still doesn't work.



      I've added my user to the group "dev/sdb1" belongs to, that is "disk" but still cannot access the device.



      Any idea on how I can find out what is going on?










      share|improve this question













      I'm using Kubuntu 16.04 with Plasma 5.8.9.



      I'm trying to connect an USB external drive with an ext4 file system but if I try to mount it through KDE's "Device Notifier" I get an error message saying:




      "You are not authorised to access this device"




      If I mount the partition from console with:



      sudo mount /dev/sdb1 /some/mount/point


      it works.



      Recently I've configured autofs to mount a SMB partition from a remote NAS to a folder in my home directory, don't know if it might be the cause of the problem.
      I've removed autofs package to exclude any involvement and rebooted, but it still doesn't work.



      I've added my user to the group "dev/sdb1" belongs to, that is "disk" but still cannot access the device.



      Any idea on how I can find out what is going on?







      mount kubuntu






      share|improve this question













      share|improve this question











      share|improve this question




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      asked Mar 12 at 8:17









      Francesco

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