Hrm.. I am pretty sure I have seen a few bug reports like this now with 17.04 where it looks like partman is going off the rails:
ubiquity: /lib/partman/choose_partition/60partition_tree/do_option: 205: /lib/partman/choose_partition/60partition_tree/do_option: /lib/partman/active_partition/copy/choices: not found -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1687637 Title: Kubuntu installer crashes when checking format box To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1687637/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs