No .mo module 

http://www.slax.org/forum/viewtopic.php?p=79870#79870

I found that the slax 6 series won't load any .mo module at boottime, only lzm modules.

documented on: May 06, 2007, Dutch Kind

No .mo module 

http://www.slax.org/forum/viewtopic.php?p=80202#80202

to convert mo to an lzm, use

mo2lzm