[K12OSN] freeduc knoppix question

[Peter Hartmann]

Hello,
Has anyone remastered Freeduc for english? I managed to edit the
isolinux.cfg file with a program called Winiso.  So now the default
keyboard and language is US english.  However Gcompris is looking for
assetml-voices-alphabet-en.  I think this means I'll need to do a true
re-mastering of Knoppix.  If I put a burner in the k12 (FC) server
could I do this?  Or does it rely on Debian?

Thanks,
Peter