I didn't try that on LXDE. I apologize I didn't start lxpolkit. If I open gparted it opens the lxpolkit prompt. And also pkexec opens it.
------- Original Message ------- On Thursday, March 2nd, 2023 at 10:37 AM, Simon McVittie <s...@debian.org> wrote: > Control: severity -1 normal > Control: tags -1 + moreinfo unreproducible > > On Fri, 30 Dec 2022 at 21:33:06 +0200, Andriy Grytsenko wrote: > > > I use LXDE myself each day, I cannot say it's nearly useless > > but many people use it and rarely have problems. > > > I happen to have installed a Debian 12 virtual machine with LXDE recently > while investigating a different bug, so I tried checking what happens in a > default installation. > > By default, task-desktop-lxde installs both lxpolkit (lxsession dependency) > and policykit-1-gnome (gnome-system-tools dependency). With these installed, > when I am logged in to a LXDE session, pkexec works as expected. I didn't > test gparted. > > I also tried removing policykit-1-gnome (which requires removing > gnome-system-tools) so that lxpolkit was the only polkit agent on the > system, and then rebooting. With only lxpolkit installed, when I am > logged in to a LXDE session, pkexec and gparted both work as expected. > > LXDE is not my preferred desktop environment and has more dependencies on > unmaintained components than I'm really happy about, but I confirm that > it works, is not useless, and does not need to be removed from bookworm. > > On Sat, 26 Mar 2022 at 17:59:53 +0100, realroot wrote: > > > If I try to use pkexec: > > > > ==== AUTHENTICATING FOR org.freedesktop.policykit.exec === > > Authentication is needed to run `/usr/bin/env' as the super user > > Authenticating as: root > > Password: > > polkit-agent-helper-1: error response to PolicyKit daemon: > > GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: No session for cookie > > ==== AUTHENTICATION FAILED === > > Error executing command as another user: Not authorized > > ... > > > If I try to launch a program tha requires root like gparted: > > > > /usr/sbin/gparted > > Error executing command as another user: No authentication agent found. > > > I suspect the situation here might be that the user reporting the bug is > not using a complete desktop environment, but has installed individual > packages to make their own desktop environment out of components. > > This is something that can be made to work, but if you do this, it's up > to you to make sure you're running all the necessary pieces, and that > includes choosing and running a suitable polkit agent. > > For example, if I log in to a plain Openbox session, that doesn't > include a polkit authentication agent, and running gparted will fail; > but if I run `lxpolkit &` and then run gparted again, this time I get > a lxpolkit prompt. A more realistic setup would be to run both openbox > and lxpolkit from ~/.xsession. > > It is not possible to auto-start a polkit agent via D-Bus activation, > because the system does not know which of potentially several polkit > agents is the one you wanted to include in your desktop environment. > > pkexec is meant to be able to operate without a polkit agent, but > something is wrong in its implementation, leading to the "No session for > cookie" error message (this is a known bug, #1031676). systemctl is an > example of a component that can do the equivalent thing correctly. If > someone works out what pkexec is doing wrong, patches would be welcome. > > smcv
