The fix is for Lenovo to issue a firmware update with the new dbx in it's ro storage so it doesn't have to be in the efi vars. Seems unlikely to happen though.
It's possible the variables are read only, which is why you can't delete it. I'm sorry to say, but these are firmware issues, there's nothing userspace can do. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1924605 Title: Grub2 menu not loading - could not create MokListXRT To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1924605/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs