From: Huang, Ying Date: Thu, 29 Nov 2007 00:21:56 +0000 (-0800) Subject: x86_64 EFI boot support: EFI boot document X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=164e217cec236f84718676543659181ea300a862;p=openwrt%2Fstaging%2Fblogic.git x86_64 EFI boot support: EFI boot document This patch adds document for EFI x86_64 boot support. The setup and operation guide of EFI based system is documented in Documentation/x86_64/uefi.txt. Signed-off-by: Chandramouli Narayanan Signed-off-by: Huang Ying Cc: "H. Peter Anvin" Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Andi Kleen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/Documentation/x86_64/uefi.txt b/Documentation/x86_64/uefi.txt new file mode 100644 index 000000000000..91a98edfb588 --- /dev/null +++ b/Documentation/x86_64/uefi.txt @@ -0,0 +1,29 @@ +General note on [U]EFI x86_64 support +------------------------------------- + +The nomenclature EFI and UEFI are used interchangeably in this document. + +Although the tools below are _not_ needed for building the kernel, +the needed bootloader support and associated tools for x86_64 platforms +with EFI firmware and specifications are listed below. + +1. UEFI specification: http://www.uefi.org + +2. Booting Linux kernel on UEFI x86_64 platform requires bootloader + support. Elilo with x86_64 support can be used. + +3. x86_64 platform with EFI/UEFI firmware. + +Mechanics: +--------- +- Build the kernel with the following configuration. + CONFIG_FB_EFI=y + CONFIG_FRAMEBUFFER_CONSOLE=y +- Create a VFAT partition on the disk +- Copy the following to the VFAT partition: + elilo bootloader with x86_64 support, elilo configuration file, + kernel image built in first step and corresponding + initrd. Instructions on building elilo and its dependencies + can be found in the elilo sourceforge project. +- Boot to EFI shell and invoke elilo choosing the kernel image built + in first step.