:: Re: [DNG] polkit - which one?
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Autor: Didier Kryn
Data:  
Dla: dng
Temat: Re: [DNG] polkit - which one?
Le 18/06/2016 13:12, emninger@??? a écrit :
> Am Sat, 18 Jun 2016 08:49:39 +0000
> schrieb Didier Kryn <kryn@???>:
>
> Salut Didier!


     Hallo Emninger :-)

>
>>      I'm using xfce4 DE on Devuan Jessie and have removed all
>> policy-kit* packages and package-kit. The halt and reboot buttons of
>> the logout menu of Xfce do not work anymore. They certainly invoke
>> some command to ask permission to policy-kit which denies it if
>> anyone else is logged on. Not something I need or want on a desktop.
>>       I have created two launcher files invoking /sbin/halt and
>> /sbin/reboot, with sensible icons, and then dragged them into the
>> pannels of all 4 users of the desktop. And I have added the following
>> line to the sudoers file:

>>
>> ALL    myhostname = (root) NOPASSWD: /sbin/halt, /sbin/reboot,
>> /sbin/shutdown

>
> What you describe, is exactly my situation. I'll try a bit that way.
> Just guessing in the dark, i'm under the impression that *polkit and
> dbus are closely depending on another ...


     I think polkit depends on dbus.

>
> It's to see and to try, if there are losses without dbus. E.g. i know,
> that thunar in some conditions needs to be started by dbus-launch to
> correctly mount (usb)devices on the fly ...

     I believe freedesktop.org has adopted dbus to distribute 
information, eg from the hotpluger.

>
> In any case, i'm very interested in a systemwide solution to halt,
> shutdown, restart, suspend the system. I thought it could be done by an
> append to sudoers (i followed the arch linux instruction, but it seem
> to *NOT* work). Your line does it?

     Sure it does. Why not? sudo is the legacy Unix command to handle 
fine-grained priviledge escalation. No need for policykit.


     Don't edit /etc/sudoers directly, invoke visudo for that, it will 
check the validity of the file before accepting it. To let it invoke 
your preferred editor, first export EDITOR foo.

>
> As for the login-manager it should be possible to integrate it (at
> least i think in lxdm that can be done?).
>

     Dunno how to do that. Would be happy to learn.


     Didier