Indico uses LaTeX (xelatex to be exact) to generate some PDF files such as the Book of Abstracts and the PDF versions of contributions.

Since Indico requires quite a few LaTeX packages which are not always] installed by default when using the texlive packages of the various linux distrubtions, we recommend installing it manually.

The following commands should work fine to install everything you need. You need to run the installation as root or create /opt/texlive as root and grant your user write access to it.

Download the installer and cd to its location (the directory name contains the date when the package was built, so use the wildcard or type the name manually based on the output when unpacking the archive):

cd /tmp
tar xvzf install-tl-unx.tar.gz
cd install-tl-*/

Create the setup config file to install all the packages you need:

cat > texlive.profile <<'EOF'
selected_scheme scheme-full
TEXDIR /opt/texlive
TEXMFCONFIG ~/.texlive/texmf-config
TEXMFLOCAL /opt/texlive/texmf-local
TEXMFSYSCONFIG /opt/texlive/texmf-config
TEXMFSYSVAR /opt/texlive/texmf-var
TEXMFVAR ~/.texlive/texmf-var
binary_x86_64-linux 1
collection-basic 1
collection-bibtexextra 1
collection-binextra 1
collection-context 1
collection-fontsextra 1
collection-fontsrecommended 1
collection-fontutils 1
collection-formatsextra 1
collection-games 1
collection-humanities 1
collection-langarabic 1
collection-langchinese 1
collection-langcjk 1
collection-langcyrillic 1
collection-langczechslovak 1
collection-langenglish 1
collection-langeuropean 1
collection-langfrench 1
collection-langgerman 1
collection-langgreek 1
collection-langitalian 1
collection-langjapanese 1
collection-langkorean 1
collection-langother 1
collection-langpolish 1
collection-langportuguese 1
collection-langspanish 1
collection-latex 1
collection-latexextra 1
collection-latexrecommended 1
collection-luatex 1
collection-mathscience 1
collection-metapost 1
collection-music 1
collection-pictures 1
collection-plaingeneric 1
collection-pstricks 1
collection-publishers 1
collection-texworks 1
collection-xetex 1
option_adjustrepo 0
option_autobackup 1
option_backupdir tlpkg/backups
option_desktop_integration 1
option_doc 1
option_file_assocs 1
option_fmt 1
option_letter 1
option_path 0
option_post_code 1
option_src 1
option_sys_bin /usr/local/bin
option_sys_info /usr/local/share/info
option_sys_man /usr/local/share/man
option_w32_multi_user 0
option_write18_restricted 1
portable 0

Start the installer and wait for it to complete. This may take between a few minutes and a few hours depending on the speed of the (randomly chosen) mirror.

./install-tl --profile texlive.profile

After installing it, add this line to your indico.conf file to use your new TeXLive installation:

XELATEX_PATH = '/opt/texlive/bin/x86_64-linux/xelatex'

If you are in a production setup, reload uWSGI using touch /opt/indico/web/indico.wsgi to reload the config file.