Problems with Tex

["Nivaldo A. P. de Vasconcelos" <nivaldo@cos.ufrj.br>]

Hello,

I installed the Debian 2.1. After, tryed install the lyx package, last
version. But this version need packages newer: libc (>=2.1) stdc++ (>=2.1)
... and installed this last pacakges .

But the latex apears unconfigurable ... 

---------------------------------------------------
nivaldo@abacaxi: ~/Mest/Percep$ latex UserGuide.tex
This is TeX, Version 3.14159 (Web2C 7.2)
I can't find the format file `latex.fmt'!   
---------------------------------------------------


What's happen ??

Thanks,

Nivaldo