I think the reason is that 'partman' does not detect the partitions: see the attached /var/log/partman
** Attachment added: "partman" https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/993251/+attachment/3126780/+files/partman -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/993251 Title: Existing partition table is not detected To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/993251/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs