I'm getting the same bug. It seems to be related to the fact that I have a Windows XP partition.
Workaround: gksu -- ubiquity --no-migration assistant My logs and configuration should be in https://bugs.launchpad.net/ubuntu/+source/aptitude/+bug/525381 -- Ubiquity reports invalid username. Won't continue https://bugs.launchpad.net/bugs/525381 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs