Secure Boot Improvements Coming To Ubuntu 14.04
There's two work items officially on the record for Ubuntu 14.04 LTS when it comes to Secure Boot. The first item is supporting the shim fallback.efi, to provide boot recovery options like restoring bootable support when moving UEFI disks between systems or when the system's firmware is lost.
The second Secure Boot change planned for Ubuntu 14.04 is integrating support for kernel signature enforcement an option that's recorded in the system's NVRAM. The reasoning behind this is so users have better control over Secure Boot enforcement and without needing to utilize vendor-specific firmware user-interfaces.