Beyond Linux® From Scratch (systemd Edition) - Version 11.2

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-11.2 platform.

Package Information

efibootmgr Dependencies

Required

efivar-38 and popt-1.18

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