Hello, if you make differents partition like /home /usr on different hard disk. You have a problem with the load KEYMAP, because this load is done before the mount of differents partition like /usr where files are. The best is : 1/ mount different partition 2/ Load Keymap. Bye.
This should be fixed in 6.1; if the keymap exists in /etc/sysconfig/console, it will be loaded from there. Otherwise it will be loaded with the keytable initscript.