Comment # 3 on bug 1176557 from Dr. Werner Fink

(In reply to G.M. Venekamp from comment #2)
> Current link:
> 
> # ll /usr/bin/lualatex
> lrwxrwxrwx 1 root root 8 Aug 25 21:33 /usr/bin/lualatex -> luahbtex
> 
> After reverting the changes done in: /etc/texmf/web2c/fmtutil.cnf and
> running fmtutil --byfmt lualatex.fmt

About which changes you are talking about? ... Ohmm I'm not aware
that there is set luahbtex as engine for lualatex. At least I do not
see such a change in one of my patches

> 
> and finally running:
>   ln -sf luatex /usr/bin/lualatex as root
> 
> # ll /usr/bin/lualatex
> lrwxrwxrwx 1 root root 6 Sep 19 07:47 /usr/bin/lualatex -> luatex
> 
> the LaTeX document compiles.
> 
> Thanks,
> Gerben