I run the following file with pdflatex
\documentclass[a4paper,11pt]{article}
\usepackage[german]{babel}
\begin{document}
Tach auch
\end{document}
and got the errors:
This is pdfTeX, Version 3.14159265-2.6-1.40.19 (TeX Live 2018) (preloaded format=pdflatex)
restricted \write18 enabled.
entering extended mode
(./x.tex
LaTeX2e <2018-04-01> patch level 5
(/usr/share/texlive/texmf-dist/tex/latex/base/article.cls
Document Class: article 2014/09/29 v1.4h Standard LaTeX document class
(/usr/share/texlive/texmf-dist/tex/latex/base/size11.clo))
(/usr/share/texlive/texmf-dist/tex/generic/babel/babel.sty
(/usr/share/texlive/texmf-dist/tex/generic/babel/switch.def)
(/usr/share/texlive/texmf-dist/tex/generic/babel-german/german.ldf
(/usr/share/texlive/texmf-dist/tex/generic/babel-german/germanb.ldf
(/usr/share/texlive/texmf-dist/tex/generic/babel/babel.def
(/usr/share/texlive/texmf-dist/tex/generic/babel/txtbabel.def))
Package babel Warning: No hyphenation patterns were preloaded for
(babel) the language `German (trad. orthography)' into the forma
t.
(babel) Please, configure your TeX system to add them and
(babel) rebuild the format. Now I will use the patterns
(babel) preloaded for english instead on input line 58.
)))
No file x.aux.
[1{/usr/share/texlive/texmf-dist/fonts/map/pdftex/updmap/pdftex.map}] (./x.aux)
)</usr/share/texlive/texmf-dist/fonts/type1/public/amsfonts/cm/cmr10.pfb>
Output written on x.pdf (1 page, 11102 bytes).
Transcript written on x.log.
I already saw the question: No hyphenation patterns were loaded for the language
and I already did sudo fmtutil --all -sys on my system.
From my distro the following packages with "german" in its names were installed:
texlive-babel-german.noarch 8:svn47192-25.fc29 @updates
texlive-datetime2-german.noarch 8:svn45800-25.fc29 @updates
texlive-german.noarch 8:svn42428-25.fc29 @updates
texlive-glossaries-german.noarch 8:svn35665.1.0-25.fc29 @updates
If I cahnge to ngerman I got more warnings/errors. But I want to stay for "old german".