I recently installed Debian Wheezy with XFce4. Whenever I try to unmount a USB, I get this error message:
GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.PolicyKit1 was not provided
How can I fix this?
This might be part of the same family of issues that cause one not to be able to mount USB drives and other kinds of external media in Debian (and other distros) without administration privileges when PolicyKit is involved.
Though I don't have the complete information at hand, I seem to remember the culprit is the default permissions for
You can partially (or perhaps fully) solve this by
(Might merit a X restart or full system reboot)
I got this from somewhere in the Arch forums. Credits go to them.
EDIT - similar issues have been posted here, with similar solutions: Impossible to mount USB stick