I have Debian 10 with Xfce installed. I can't open any of my NTFS hard drives using icons on desktop and in Thunar. I can mount them with the mount command, though. My user is added to the sudoers group and also to the sudoers file, and it can use sudo in terminal, but for some reason Xfce seems to fail to ask for password. I also have Gnome installed and it asks for password and mounts these drives fine. Also, USB drives mount without any problem both in Xfce and Gnome.

What should I do?

"Mount Failed" error pop-up

  • Have you tried to mount it in Gnome and copy a record for your drive mounted in gnome from /etc/mtab into /etc/fstab? Or you like to input password every time/boot?
    – Gryu
    Jan 15, 2020 at 17:49
  • I don't mind entering password every time it seems like default behavior. As far as I remember it was like so when I installed debian before.
    – skogach
    Jan 15, 2020 at 17:58
  • you should check the permission attributes to the filesystem and partition, and whenever you mount try to use "sudo mount /dev/sda1 /home/file" etc. etc. also creating a active fstab entry for automatic mounting is smart too
    – printf
    Jan 15, 2020 at 22:57

1 Answer 1


Turns out, the dialog window that asks for a password is actually a separate program called "PolicyKit authentication agent" which for some reason wasn't installed. So i installed policykit-1-gnome and now I can enter the password and mount drives.

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