User Feedback :: Keymaps
At the initial boot prompt.
When it says Boot and waits a moment before continuing to load.
If you are curious press F2 to see some of the options available.
Just type "knoppix keyboard=pl" (i don't need to use this so it could be xkeyboard=pl ..try both)
Kudzu's method should work as well. Once you do a hard disk install it should remember your setting.
HTH
Ok, I know how to change the "keyboard" (I use cz-us-qwertz). But what about FONTS? I canīt write czech letters 
original here.