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authorHuang, Ying <ying.huang@intel.com>2007-11-28 19:21:56 -0500
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-11-29 12:24:54 -0500
commit164e217cec236f84718676543659181ea300a862 (patch)
tree0e9e7e25ab04189f668c5f1b3e2d3bc6b2f6dac2 /Documentation/x86_64
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 <mouli@linux.intel.com> Signed-off-by: Huang Ying <ying.huang@intel.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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1General note on [U]EFI x86_64 support
2-------------------------------------
3
4The nomenclature EFI and UEFI are used interchangeably in this document.
5
6Although the tools below are _not_ needed for building the kernel,
7the needed bootloader support and associated tools for x86_64 platforms
8with EFI firmware and specifications are listed below.
9
101. UEFI specification: http://www.uefi.org
11
122. Booting Linux kernel on UEFI x86_64 platform requires bootloader
13 support. Elilo with x86_64 support can be used.
14
153. x86_64 platform with EFI/UEFI firmware.
16
17Mechanics:
18---------
19- Build the kernel with the following configuration.
20 CONFIG_FB_EFI=y
21 CONFIG_FRAMEBUFFER_CONSOLE=y
22- Create a VFAT partition on the disk
23- Copy the following to the VFAT partition:
24 elilo bootloader with x86_64 support, elilo configuration file,
25 kernel image built in first step and corresponding
26 initrd. Instructions on building elilo and its dependencies
27 can be found in the elilo sourceforge project.
28- Boot to EFI shell and invoke elilo choosing the kernel image built
29 in first step.