X2Go Bug report logs - #457
Fwd: polkit-gnome-authentication-agent-1 fails to start on specific distros

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Date: Wed, 20 Aug 2014 10:57:30 +0000
Message-ID: <20140820105730.Horde.SeiuhYTQmhlp89Ew8vpjqg6@mail.das-netzwerkteam.de>
From: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
To: Michael DePaulo <mikedep333@gmail.com>, 457@bugs.x2go.org
Subject: Re: [X2Go-Dev] Bug#457: Fwd: polkit-gnome-authentication-agent-1
 fails to start on specific distros
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Hi Michael,

On  Sa 22 Mär 2014 16:44:34 CET, Michael DePaulo wrote:

> 5. polkit-gnome-authentication-agent-1 is started as gdm, but it
> should be started as the user also.
>
> Test system:
> CentOS 6.5 64-bit
> x2goserver: 4.0.1.13
> x2goserver-xsession: 4.0.1.13 (same behavior when this package is  
> not installed)
> nx-libs: 3.5.0.22
> GNOME
> (This distro uses ConsoleKit, not systemd-logind)
>
> [batmin@mothership-el6 ~]$ pkexec gpk-application
> Error executing command as another user: No authentication agent was found.
> [batmin@mothership-el6 ~]$ ps -ef | grep agent
> gdm        653     1  0 11:06 ?        00:00:00 /usr/bin/spice-vdagent
> gdm        671   645  0 11:06 ?        00:00:00
> /usr/libexec/polkit-gnome-authentication-agent-1
> batmin    1246     1  7 11:08 ?        00:00:01
> /usr/lib64/nx/../x2go/bin/x2goagent -extension XFIXES -nolisten tcp
> -dpi 96 -D -auth /home/batmin/.Xauthority -geometry 1024x768 -name
> X2GO-batmin-52-1395500884_stDGNOME_dp32 :52
> root      1532     1  0 Mar21 ?        00:00:01 /usr/sbin/spice-vdagentd
> batmin    1710     1  0 11:08 ?        00:00:00 /usr/bin/spice-vdagent
> batmin    2032  2015  0 11:08 pts/0    00:00:00 grep agent
> [batmin@mothership-el6 ~]$ /usr/libexec/polkit-gnome-authentication-agent-1
>
> (polkit-gnome-authentication-agent-1:2035): polkit-gnome-1-WARNING **:
> Unable to determine the session we are in: Remote Exception invoking
> org.freedesktop.ConsoleKit.Manager.GetSessionForUnixProcess() on
> /org/freedesktop/ConsoleKit/Manager at name
> org.freedesktop.ConsoleKit:
> org.freedesktop.ConsoleKit.Manager.GeneralError: Unable to lookup
> session information for process '2035'
> org.freedesktop.ConsoleKit.Manager.GeneralError
> Unable%20to%20lookup%20session%20information%20for%20process%20%272035%27
> [batmin@mothership-el6 ~]

I assume that this GNOME polkit daemon is from GNOMEv2(?).

Any chance you can provide me with a link to the source code?

Before you do this, please check if the X2Go Session is using  
x2goserver-xsession and if the session is launched (via xinitrc or so)  
with prefixed ck-launch-session.

In Debian/Ubuntu, this is handled via  
/etc/X11/Xsession.d/90consolekit. Something equivalent should exist  
for RHEL-6 based distros.

Mike
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