x86_64 EFI boot support: EFI boot document
PATCH 2/2 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 <[email protected]>
Signed-off-by Huang Ying <[email protected]>
--- Documentation/x86_64/uefi.txt | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+)
Documentation/x86_64/uefi.txt new file +29 -0
@@ -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.