OK, found it out myself: looks like the installer crashed when it found the user's home directory existing as I installed on an existing partition and which I didn't ask to format. The question remains why it crashes instead of exiting gracefully and continuing to finish the install.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/899082 Title: Lubuntu installer crashed near the end of the installation To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/899082/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs