Locale

less /usr/share/i18n/SUPPORTED

sudo locale-gen fr_CH fr_CH.UTF-8

sudo update-locale

OR

sudo apt-get install language-pack-fr language-pack-fr-base

sudo dpkg-reconfigure locales

On RH/Fedora, try

loadkeys fr_CH

You can see all the avalaible layouts in /lib/kbd/keymaps/i386 e.g. ls /lib/kbd/keymaps/i386/qwertz/

Help:

• http://askubuntu.com/questions/89976/how-to-change-the-default-locale-in-ubuntu-10-10-server
• https://help.ubuntu.com/community/Locale