Comment # 13 on bug 1074128 from Dr. Werner Fink

(In reply to dude bro from comment #10)
> localhost:/usr/share/texmf/texconfig # kpsewhich language.dat
> /etc/texmf/tex/generic/config/language.dat
> localhost:/usr/share/texmf/texconfig # kpsewhich language.def
> /etc/texmf/tex/generic/config/language.def
> localhost:/usr/share/texmf/texconfig # kpsewhich language.dat.lua
> /etc/texmf/tex/generic/config/language.dat.lua
> localhost:/usr/share/texmf/texconfig # find /usr/share/texmf/ 
> >                         -name language.dat.lua -or \
> >                         -name language.def -or \
> >                         -name language.dat | xargs ls -gl
> lrwxrwxrwx 1 root 42 16. Dez 21:23
> /usr/share/texmf/tex/generic/config/language.dat ->
> /etc/texmf/tex/generic/config/language.dat
> lrwxrwxrwx 1 root 46 16. Dez 21:23
> /usr/share/texmf/tex/generic/config/language.dat.lua ->
> /etc/texmf/tex/generic/config/language.dat.lua
> lrwxrwxrwx 1 root 42 16. Dez 21:23
> /usr/share/texmf/tex/generic/config/language.def ->
> /etc/texmf/tex/generic/config/language.def                                  
> 
> localhost:/ # ls -l /run/texlive/                                           
> 
> ls: Zugriff auf '/run/texlive/' nicht m�glich: Datei oder Verzeichnis nicht
> gefunden

You have to do this as super user root!  Do

   su
   mkdir /run/texlive
   touch /var/run/texlive/run-hyphen
   touch /var/run/texlive/run-fmtutil.language
   touch /var/run/texlive/run-fmtutil.refresh
   /usr/share/texmf/texconfig/update