Not sure if this is helpful or not, but since the partitioning had been successful I just chose to install again, choosing to use largest continuous space and I was once again presented with the same error message. But I decided to go ahead with the install since this drive is used solely for testing (nothing to lose) and the installation does appear to have been successful. I'm actually posting this message from that install after having rebooted into it.
-- Ubiquity shows "no partition table changes" warning despite selecting use entire disk https://bugs.launchpad.net/bugs/556373 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