Re: gdm question

[Jason Trickett <jtrickett hwcn org>]

Hey Aschwin! Thanks a lot for the effort you put in to your reply! It indeed looked like a lot of digging ;)
I'm going to be attempting this later today. I have one question, though, about the /usr/bin/startgnome2 script I will be creating. Should I be just adding the lines ...
> exec /usr/bin/gnome-session
> export PATH=/opt/garnome/bin:/opt/garnome/sbin:$PATH
> export LD_LIBRARY_PATH=/opt/garnome/lib:$LD_LIBRARY_PATH 
> export GDK_USE_XFT=1
> exec /opt/garnome/bin/gnome-session
>     
... to my startgnome file at the end, then saving it as startgnome2 (changing /opt to /home/jason)? I'm not as experienced at this kind of thing yet, so it wasn't obvious to me.

Hope to hear back!

- Jason


On Mon, 2002-09-02 at 02:42, Aschwin van der Woude wrote:
> Ok, lets see how I did this. Keep in mind I might not have gotten
> everuthing the Mandrake-way, but it works for me.
>
> Runlevel 5 starts /etc/X11/prefdm which reads /etc/sysconfig/desktop.
> This config file tells prefdm the display-manager you would like to use.
> I needed to modify prefdm in order for it to accept a new option (gdm2)
> in the 'desktop'-file.
>
> This is the diff for prefdm :
>
> --- prefdm.rpmnew	Fri Mar 15 17:46:41 2002
> +++ prefdm	Tue May  7 22:57:51 2002
> @@ -41,6 +41,8 @@
>  	[ -z "$DISPLAYMANAGER" ] && DISPLAYMANAGER=$DESKTOP
>  	if [ "$DISPLAYMANAGER" = "GDM" -o "$DISPLAYMANAGER" = "gdm" -o
> "$DISPLAYMANAGER" = "GNOME" -o "$DISPLAYMANAGER" = "gnome" -o
> "$DISPLAYMANAGER" = "Gnome" ]; then
>  		preferred=gdm
> +	elif [ "$DISPLAYMANAGER" = "GDM2" -o "$DISPLAYMANAGER" = "gdm2" -o
> "$DISPLAYMANAGER" = "GNOME2" -o "$DISPLAYMANAGER" = "gnome2" -o
> "$DISPLAYMANAGER" = "Gnome2" ]; then
> +		preferred=/opt/garnome/bin/start-gdm
>  	elif [ "$DISPLAYMANAGER" = "KDM" -o "$DISPLAYMANAGER" = "kdm" -o
> "$DISPLAYMANAGER" = "KDE" -o "$DISPLAYMANAGER" = "kde" ]; then
>  		preferred=kdm
>  	elif [ "$DISPLAYMANAGER" = "XDM" -o "$DISPLAYMANAGER" = "xdm" ] ; then
>
>
> As you can see a variable 'preferred' is used for launching the
> display-manager in the end of the script. I need to set the full path to
> a start-gdm script, because my gnome2 installation is not in the default
> path.
>
> I didn't call gdm directly because I did want to have anti-aliasing and
> so on. So I created the following script called 'gdm-start'
>
> #!/bin/sh
> export PATH=/opt/garnome/bin:/opt/garnome/sbin:$PATH
> export LD_LIBRARY_PATH=/opt/garnome/lib:$LD_LIBRARY_PATH
> export GDK_USE_XFT=1
> exec /opt/garnome/bin/gdm -nodeamon
>
> As you can see it start gdm. Now you are almost fully operational. But
> off course you want to have gdm list all sessions Mandrake knows about.
> For this I modified the gdm configuration (for me in
> /opt/garnome/etc/gdm/gdm.conf) to point to the normal session
> directories.
>
> Here the config lines I changed :
>
> [daemon]
> PostSessionScriptDir=/etc/X11/gdm/PostSession/
> PreSessionScriptDir=/etc/X11/gdm/PreSession/
> SessionDir=/etc/X11/gdm/Sessions/
>
> (I am not sure if more changes were need like rootpath etc.)
> Next step is to make Gnome2 show up as an option in the session-list
>
> For this I first add a file called 'Gnome2' to /etc/X11/gdm/Sessions/
> with the following content :
>
> #!/bin/sh
> exec /etc/X11/xdm/Xsession Gnome2
>
>
> This is the same way other sessions are started, and luckily no
> modification are needed to the Xsession-script as is actually expected
> to easily add new Sessions.
> This script uses a script called /usr/sbin/chksession to do the session
> specific startup. This script looks in /etc/X11/wmsession.d.
> In this 'wmsession.d' directory I add a file called '01Gnome2'. You can
> give it another number if you like, but have it at number one makes it
> the default session.
> The '01Gnome2' file looks like this:
>
> NAME=Gnome2
> ICON=gnome-logo-icon-transparent.xpm
> DESC=Gnome2 Environment
> EXEC=/usr/bin/startgnome2
> SCRIPT:
> exec /usr/bin/startgnome2
>
>
> As you see it starts Gnome2 through a 'startgnome2' script. I didn't
> create this script anew, instead I just copied the orginal 'startgnome'
> script and made some modifications to it.
> Here a diff of the modifications :
>
> @@ -45,4 +45,8 @@
>    echo $MDKVERSION > $HOME/.gnome/mdkversion
>  fi
>  
> -exec /usr/bin/gnome-session
> +export PATH=/opt/garnome/bin:/opt/garnome/sbin:$PATH
> +export LD_LIBRARY_PATH=/opt/garnome/lib:$LD_LIBRARY_PATH 
> +export GDK_USE_XFT=1
> +
> +exec /opt/garnome/bin/gnome-session
>
>
> As you can see it starts gnome-session and sets the correct
> env-variables so I do have smooth anti-aliasing and so.
>
> After all this you should have a nice anti-aliased gdm2 listing a gnome2
> session, which also starts with anti-aliasing enabled.
>
> Have fun,
>
> -A.
>