Linux – Can’t mount drive in Thunar anymore

arch linuxpolkitthunar

Today, I got a Not authorized to perform operation. message when I tried to mount a drive in Thunar.

# cat /etc/polkit-1/localauthority/50-local.d/10-udiskie.pkla 
[Local Users]
Identity=unix-group:storage
Action=org.freedesktop.udisks2.*
ResultAny=yes
ResultInactive=no
ResultActive=yes

I'm in the storage group.

Best Answer

Rules of this sort, whether polkit or udev are no longer necessary if you have an active session under systemd/logind. Originally, rules of this sort were a workaround for non-consolekit sessions, but now Arch has moved to systemd they are no longer necessary and are more likely to inhibit correct automounting behaviour rather than assist it.

You can check that you have an active session with:

loginctl show-session $XDG_SESSION_ID

which should show amongst its output:

Remote=no 
Active=yes

If this doesn't show, and you are not using a display manager, you need to ensure that when you start X your session is preserved—so X must be run on the same TTY where login occurred. See this entry on the Arch Wiki.

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