Beyond Linux® From Scratch (systemd Edition) - Version 11.3

Chapter 5. File Systems and Disk Management

efibootmgr-18

Introduction to efibootmgr

The efibootmgr package provides tools and libraries to manipulate EFI variables.

This package is known to build and work properly using an LFS 11.3 platform.

Package Information

efibootmgr Dependencies

Required

efivar-38 and popt-1.19

User Notes: https://wiki.linuxfromscratch.org/blfs/wiki/efibootmgr

Installation of efibootmgr

Build efibootmgr with the following commands: 

make EFIDIR=LFS EFI_LOADER=grubx64.efi

This package does not have a test suite.

Now, as the root user: 

make install EFIDIR=LFS

Command Explanations

EFIDIR=LFS: This option specifies the distro's subdirectory name under /boot/efi/EFI. The building system of this package needs it to be set explicitly.

EFI_LOADER=grubx64.efi: This option specifies the name of the default EFI boot loader. It is set to match the EFI boot loader provided by GRUB .

Contents

Installed Programs: efibootdump and efibootmgr

Short Descriptions

efibootdump

is a tool to display individual UEFI boot options, from a file or an UEFI variable

efibootmgr

is a tool to manipulate the UEFI Boot Manager