Phoronix: Lenovo UEFI Only Wants To Boot Windows, RHEL

It turns out that for at least one of Lenovo's computer models, their UEFI implementation is explicitly checking for Windows or Red Hat Enterprise Linux and refusing to boot the UEFI-installed system if neither operating system is reported...

http://www.phoronix.com/vr.php?view=MTIyOTg