I've got exactly the same problem: MacBook Air 3.2 + Ubuntu 11.04 amd64 Dowloaded .iso many times. The syslog says: AssertionError: Missing filesystem.size.
** Attachment added: "Stefano syslog" https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/781587/+attachment/2133188/+files/syslog.tar.gz -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/781587 Title: Installer crashes shortly after the partitioning step -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs