25ubuntu1 definitely fixes the issue, you need to make sure you're getting all the bits (including -signed) upgraded, not just picking a few grub packages by hand to upgrade.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1464959 Title: Secure Boot broken on amd64 with grub2 2.02~beta2-25 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1464959/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs