I have come to the conclusion that this is not because of a bug in ubiquity.
Problem: I was using similar volumes labels on two devices (e.g. two volumes labeled "/boot"). ** Changed in: ubiquity (Ubuntu) Status: New => Invalid -- Does not allow installation via manual partition editing to scdb https://bugs.launchpad.net/bugs/198643 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