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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: 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.
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