Hi, It appears something is broken in my xfce install, as Thunar can't mount removable volumes anymore.
I've managed to narrow down the issue as happening somewhere between gvfs and udisks2. Mounting a USB Flash drive with 'udisksctl mount -b /dev/sdb1' works, but 'gvfs-mount -d /dev/sdb1' gives the 'Not authorized to perform operation' error. According to the actions defined in /usr/share/polkit-1/actions/org.freedesktop.udisks2.policy I should be able to mount removable volumes as an active user. loginctl shows my session as Active. Anyone have any idea what the next step is I could check? -- "We will need a longer wall when the revolution comes." --- AJS, quoting an uncertain source.