univention-upgrade does not show an error message in this situation: root@master85:~# univention-upgrade Starting univention-upgrade. Current UCS version is 3.1-1 errata130 Checking for local repository: none Checking for release updates: none Checking for package updates: none root@master85:~# apt-get update E: Missgestaltete Zeile 5 in Quellliste /etc/apt/sources.list (»dist parse«) E: Die Liste der Quellen konnte nicht gelesen werden.
*** This bug has been marked as a duplicate of bug 34444 ***