grub-mklayout - different input format?

[Treutwein Bernhard]

I am using Grub-2 together with tinycorelinux
(http://distro.ibiblio.org/tinycorelinux) 
on a system with a german keyboard.

Since 1.99 there is support for international keyboard layouts in 
Grub with the following commands in grub.cfg:

        keymap grub-keymap
        terminal_input at_keyboard

here grub-keymap is a keymap generated by translating an X11 
keyboard definition file with ckbcomp into a format 
understood by grub-mklayout:

        ckbcomp /usr/share/X11/xkb/symbols/ch | grub-mklayout -o /boot/ch.gkb

Now, tinycore does neither have the X keyboard definition files nor the
command ckbcomp. So I asked some time ago in the tinycore forum for help 
and got the following reply (including my query): 
http://forum.tinycorelinux.net/index.php?topic=9730.msg52948#msg52948

Now I am a confused and I don't have any idea how to manage it.

Is the format understood by grub-mklayout the keymaps(5) format?

The only documentation about grub-mklayout I was able to find 
(http://manpages.ubuntu.com/manpages/natty/man1/grub-mklayout.1.html)
does not say anything about the required input format.


--
  Bernhard