in script /etc/rc.d/rc.sysinit:
in the keymap-load code there is a check if directory
/usr/lib/kbd/keymaps exists before calling loadkeys with the
user-provided keymap-setting ( in /etc/sysconfig/keyboard ).
this is done before filesystems are mounted. so if /usr is
an own partition this code doesn4t work.
furthermore after upgrading from Red Hat 5.2 the file
/etc/sysconfig/console/default.kmap exists, so that the user
provided keymap-setting isn4t recognized by the code
The test for /usr/lib/kbd/keymaps is there precisely
so it doesn't try to load it when /usr isn't mounted.
/etc/sysconfig/console/default.kmap is there so that a keyboard
map can be loaded early (for fsck recovery, etc.)
The regular keymap will be loaded by the keytable init script