diff options
authorHuang, Ying <>2007-11-28 16:21:56 -0800
committerLinus Torvalds <>2007-11-29 09:24:54 -0800
commit164e217cec236f84718676543659181ea300a862 (patch)
parent7c83172b98e569d9aabf947d8b3b089dadb2ff46 (diff)
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 <>
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diff --git a/Documentation/x86_64/uefi.txt b/Documentation/x86_64/uefi.txt
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+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:
+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.
+- Build the kernel with the following configuration.
+- 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.