Mathieu, I think one thing you might check for that changing partman doesn't "fix" is this: choose manual partitioning, create an ext4 filesystem for root, and nothing else. I believe you will then get this pop up as it will see the one ext4 partition, and no ESP.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1418706 Title: Vivid: UEFI: blank drive incorrectly detected as existing BIOS-mode install To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/partman-auto/+bug/1418706/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
