Recently found the following article saying Ubuntu 12.10 supports now the secure boot and comes with a bootloader with CA signed by MSFT. It does not give much detail on deployment on a system with secure boot enabled. I also not sure whether server or desktop version or both supprots secure boot. On ubuntu website itself, I am not finding any information. Has anyone explored this avenue? I would specifically like to try isntalling it in secure boot mode enabled system.