Re: [Ltsp-discuss] LTSP4.2 autologin

[Gideon R. <lt...@sy...>]

Gabriel,

It is always best to understand how the scripts should work before
implementing them - otherwise it makes things harder to debug.

Your instructions are basically making use of gdm's ability to specify a
script to be executed when retrieving the autologin user.  The output of
such a script *must* be a valid username.  If the output of the script
is empty (no output), then gdm will use the "root" user.

Now, since that is what gdm is using, it tells you that the script is
indeed not returning a username as output.  Let's look at the script and
figure out why:

The first line in the script cuts the DISPLAY environment variable by
periods and returns the first part.  It will use this first part to
figure out what user to return.  That works ok, provided that the first
part of the DISPLAY variable is a workstation name.  Is it?

If it is not a hostname but an IP address, the result of returning the
first part would be a number!  That number would not match any of the
cases you set up and therefore return no autologin user.  That could be
the problem.

How to check?  Well, tell the script to return $CLIENT.  Then, if it is
a number, gdm may say "User 192 will login in 5 seconds..." And you will
say to yourself, "User 192?!"

If that is the problem, then you ask - why is gdm using IP and not
hostname?  Does my workstation have a hostname?  Is my /etc/hosts
correct?  Or, does gdm no longer resolve DISPLAY to hostname?  Well, the
first two are easy to check.  If you discover it is #3, then you may
need to modify your script to autologin users based upon IP rather than
hostname.

Hope that helps,

-Gadi


On Mon, 2008-11-24 at 21:01 +0000, gabriel lopez wrote:
> GDM LTSP4.2 Autologin‏
> De:
> gabriel lopez
> (gab...@ho...) 
> Enviado:
> viernes, 21 de noviembre de 2008
> 03:59:32 p.m.
> Para: 
> LTSP
> (lts...@li...)
> I am in the process of installing LTSP4.2 on Mandriva 2009. There has
> been problem because i has not found specific instructions for
> Mandriva 2009 but Instructions for Mandriva 2006 and 2007 work 95% of
> the time.
> What i have to solve now is autologin on terminals.
> I have tried instructions for KDM and GDM and none works.
> I has gone back to GDM  and use this instructions:
> 
> #####################################################################
> Create a user ID for each client machine that will autologin. This
> how-to assumes the IDs are auto1, auto2, auto3, etc. 
> Create the /usr/bin/autologin script. This script figures out which
> client it's running on and then passes a correpsonding login ID to GDM
> for the autologin. Here's a sample script, which you can modify to
> suit your needs: 
> --------autologin
> script--------------------------------------------------
> #!/bin/bash
>  CLIENT=$(echo $DISPLAY || cut -d. -f1)
>  case "$CLIENT" in
>      "ws001")    disp=auto1;;
>      "ws002")    disp=auto2;;
>      "ws003")    disp=auto3;;
>  esac
>  echo $disp
> ----------------------------------------------------
>  Be sure the $disp variable is being set to valid user IDs you created
> in the previous step.  Remember to make the autologin script
> executable ('chmod +x /usr/bin/autologin').
> Modify /etc/gdm/custom.conf and add the following settings under the
> daemon and security sections. Be sure to include the pipe character at
> the end of the TimedLogin line.* 
> -------------------custom.conf--------------------------------
>  daemon
>  
> AutomaticLoginEnable=true
>  TimedLoginEnable=true
>  TimedLogin=/usr/bin/autologin|
>  TimedLoginDelay=30
> 
>  security
> 
>  AllowRemoteAutoLogin=true
> ----------------------------------------------------------------
> Restart GDM. This will kick all users, including you at the console,
> off the system and send them back to the login screen. As such, it's
> best if you switch to a command prompt console by pressing
> Ctrl-Alt-F1, and login in as root, if you aren't already. Then,
> restart gdm: 
>   gdm-restart
> 
> ###################################################################
> 
> 
> The problem is that i can see the login screen on the terminal and a
> message that say somthiong like
> "root wil login in 30,29,.... seconds" but root never login and th
> message start again "root wil login in 30,29,.... seconds" and so on.
> I DO NOT WANT TO LOGIN AS ROOT BUT AS A REGULAR USER. auto1 in this
> case.
> 
> What i thing is that something is missing because i do not see how the
> value "auto1" stored in $disp on the script, is passed to GDM as the
> name of the user i want lo login as.
> 
> Any help?
> 
> 
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-- 
--------------------------------------------------------
Gideon Romm | Proud LTSP Developer
lt...@sy...

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