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 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