This is a low priority bug for ubuntu, cause it has grub2-signed package. But in debian case it becomes problematic as debian has no grub2-signed package. Thus users must use self-compiled monolith grub2 package. Evidently this package is not signed with Debian key, and hence it can't be loaded.
This is a low priority bug for ubuntu, cause it has grub2-signed package. But in debian case it becomes problematic as debian has no grub2-signed package. Thus users must use self-compiled monolith grub2 package. Evidently this package is not signed with Debian key, and hence it can't be loaded.