Microsoft Windows 8 uses UEFI to further limit Linux living space

" Windows 8 certified brand machines may not support booting Linux. " According to the new regulations, Windows 8 certified machines may block the deployment of Linux. Win 8 requires the machine to replace the BIOS with the Unified Extensible Firmware Interface (UEFI). EFI is gradually replacing the long-term use of BIOS firmware, which is compatible with Windows and supports the Globally Unique Partition Table (GUID Partition Table), OS X/Intel and Linux 2.6.

The EFI and UEFI specifications are fine for Linux, but the problem is that Microsoft requires the win8 authentication client to support secure boot. All firmware and software in the boot process require a trusted CA signature. Obviously Microsoft tries to lock the boot. A process that prevents the installation of unsigned third-party systems such as Linux.