By design, Microsoft has made installing and booting Linux on Windows 8 PCs with UEFI (Unified Extensible Firmware Interface) Secure Boot troublesome. Many of the major Linux distirbutors, including Fedora, openSUSE, and Ubuntu, have proposed different ways of addressing this problem. The Linux Foundation, which supports all Linux, recently proposed a universal plan for addressing the UEFI Secure Boot issue. Unfortunately, it's been delayed.
The plan was, as James Bottomley, Parallels' CTO of server virtualization and well-known Linux Kernel maintainer, explained on October 10th, 2012, to "obtain a Microsoft Key and sign a small pre-bootloader which will, in turn, chain load (without any form of signature check) a predesignated boot loader which will, in turn, boot Linux (or any other operating system)."
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