For me, the error only occurred when I was installing from an empty ssd. Formatting the ssd in gpt and creating one ext4 partition made the installer ask if I wanted to force UEFI ahead of the partitioning process. After that the installation works as usual.
-- 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: 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
