Looking at the syslog it may be relevant, that this is a German installation. I see:
Sep 20 23:07:17 ubuntu ubiquity: Bitte 'j' oder 'n' eingeben und Enter drücken Sep 20 21:07:18 ubiquity: last message repeated 78 times Maybe someone somewhere is passing a non-localized 'y' for 'yes' and someone else is expecting a localized 'j' (Ja for yes). Attaching syslog and debug log from ubiquity. This should have more info that the previous logs. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/855042 Title: ubiquity hangs while jockey-text at 100% CPU To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/855042/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs