Simple CPUID Utility For UEFI Shell

This post discusses the CPUID opcode which is available for IA32 and IA64/AMD64 platforms. The source code for a simple cpuid utility is also provided.

Booting Fedora 19 Using EFI Boot Stub

This post assumes that you are familiar with EFISTUB-booting a Linux Kernel and you have access to an EFI shell on your system. If not, see my blog posts on Musings of an OS Plumber for more information on EFI booting Linux systems. Here is a suitable EFI script for the Fedora 19 GA kernel: $ cat f19.nsh vmlinuz-3.9.6-301.fc19.efi root=UUID=1d3092fc-265e-4860-a609-d6a16c1a6458 rd.lvm=0 KEYTABLE=us SYSFONT=True rd.luks=0 ro LANG=en_US.UTF-8 rhgb quiet initrd=.initramfs-3.9.6-301.fc19.x86_64.img You will have to replace the above root filesystem UUID with the UUID of your root filesystem. It also assumes that you are not using a Logical Volume Manager