Running Sato/X11 as non-root

Running Sato/X11 as non-root

[Gary Thomas]

In my attempt to get pulseaudio running, I need to bring up
my X11 session with a user that is not root.  The default
(core-image-sato) always starts X11 as root.  This yields
these errors when starting (with pulseaudio installed):
   W: [pulseaudio] main.c: This program is not intended to be run as root (unless --system is specified).
   E: [autospawn] core-util.c: Home directory /home/root not ours.
   W: [autospawn] lock-autospawn.c: Cannot access autospawn lock.
   E: [pulseaudio] main.c: Failed to acquire autospawn lock
   W: [pulseaudio] main.c: This program is not intended to be run as root (unless --system is specified).
   E: [autospawn] core-util.c: Home directory /home/root not ours.
   W: [autospawn] lock-autospawn.c: Cannot access autospawn lock.
   E: [pulseaudio] main.c: Failed to acquire autospawn lock

So, I tried to make X run as user 'demo', which I created, by
putting 'demo' in /etc/X11/Xusername.  Now it seems to try
and run as 'demo', but falls over quite quickly:
   Fatal server error:
   [2951371.651] xf86OpenConsole: Cannot open /dev/tty0 (No such file or directory)
   [2951371.651]
   [2951371.651] (EE)
   Please consult the The X.Org Foundation support
          at http://wiki.x.org for help.
   [2951371.651] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
   [2951371.651] (EE)
   [2951371.652] (WW) xf86CloseConsole: KDSETMODE failed: Bad file descriptor
   [2951371.652] (WW) xf86CloseConsole: VT_GETMODE failed: Bad file descriptor
   [2951371.652] Server terminated with error (1). Closing log file.

Any ideas how I get this going?

n.b. not only do I want to get this going for myself, but I think
the discussion (and maybe subsequent documentation) is useful since
this functionality is in OE-core (or is it only Poky/Yocto - hard
to tell)...

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------

Re: Running Sato/X11 as non-root

[Tomas Frydrych]

On 06/02/13 14:40, Gary Thomas wrote:
> In my attempt to get pulseaudio running, I need to bring up
> my X11 session with a user that is not root.  The default
> (core-image-sato) always starts X11 as root.  This yields
> these errors when starting (with pulseaudio installed):
>   W: [pulseaudio] main.c: This program is not intended to be run as root
> (unless --system is specified).
>   E: [autospawn] core-util.c: Home directory /home/root not ours.
>   W: [autospawn] lock-autospawn.c: Cannot access autospawn lock.
>   E: [pulseaudio] main.c: Failed to acquire autospawn lock
>   W: [pulseaudio] main.c: This program is not intended to be run as root
> (unless --system is specified).
>   E: [autospawn] core-util.c: Home directory /home/root not ours.
>   W: [autospawn] lock-autospawn.c: Cannot access autospawn lock.
>   E: [pulseaudio] main.c: Failed to acquire autospawn lock
> 
> So, I tried to make X run as user 'demo', which I created, by
> putting 'demo' in /etc/X11/Xusername.  Now it seems to try
> and run as 'demo', but falls over quite quickly:
>   Fatal server error:
>   [2951371.651] xf86OpenConsole: Cannot open /dev/tty0 (No such file or
> directory)
>   [2951371.651]
>   [2951371.651] (EE)
>   Please consult the The X.Org Foundation support
>          at http://wiki.x.org for help.
>   [2951371.651] (EE) Please also check the log file at
> "/var/log/Xorg.0.log" for additional information.
>   [2951371.651] (EE)
>   [2951371.652] (WW) xf86CloseConsole: KDSETMODE failed: Bad file
> descriptor
>   [2951371.652] (WW) xf86CloseConsole: VT_GETMODE failed: Bad file
> descriptor
>   [2951371.652] Server terminated with error (1). Closing log file.
> 
> Any ideas how I get this going?
> 
> n.b. not only do I want to get this going for myself, but I think
> the discussion (and maybe subsequent documentation) is useful since
> this functionality is in OE-core (or is it only Poky/Yocto - hard
> to tell)...

The user that the rootless X in Poky is expecting is called xuser; if
you use your own, you need to make sure that it's in all the appropriate
groups the server needs it to be in, etc.; see the xserver-nodm-init recipe.

Tomas

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