http://www-sor.inria.fr/~shapiro/fr-mklinux-keyboard/

You have to add a custom keyboard map file. Instruction on how to
install such a file can be found at
http://www.inmind.com/people/jontrudy/Linux.html 
 
and the Swedish map file can be found at http://www.algonet.se/~m-arc/ 
 
mar@ssc.se

I have set up a Web page on how to configure MkLinux to support foreign
keyboards under both console mode and X-Windows. An improved German
keyboard mapping is also included.

http://www.informatik.uni-muenchen.de/~rauschma/axellent/unix.html 

rauschma@informatik.uni-muenchen.de

This is the technique that I used to get a non-US keyboard layout, (in this
 case the dvorak keyboard layout) to be the
default keyboard layout during my X sessions.  First, find a keysym file for
your non-US keyboard. The file should look something like this one for dvorak
http://www.ccsi.com/~mbrooks/dvorak/keysym.dvorak.  To use this keyboard
layout you could load at the beginning of each session with "xmodmap
keysym.dovark" command.
This is rather annoying because you will alway have to type this using the
US layout.  To skip this step and have your keyboard load automatically at
the start of each session, follow these next step.  Depending upon your userid
or the user account that you have logged into, create in the directory of
the account (its home directory) a file name ".Xmodmap" (including the period).
I do this using emacs and its pretty 
simple.  Once you have this file open in emacs simply insert the contents
of the keysym file, using emacs C-x i command.  The contents of .Xmodmap should
now appear to be the contents of the keysym file.  Save or write the .Xmodmap.
Now everytime you log into the account with this .Xmodmap file in its home
directory and start up X windows, your keyboard will have your non-US layout.