It did before 18.04 where the warning was removed. Hopefully very soon it will be fixed to just automatically switch to bios mode for you. See bug #1766945.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1775657 Title: The 'grub-efi-amd64-signed' package failed to install To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1775657/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
