Beyond Linux® From Scratch (System V Edition) - Version 11.1

Chapter 5. File Systems and Disk Management

efivar-38

Introduction to efivar

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

This package is known to build and work properly using an LFS-11.1 platform.

Package Information

efivar Dependencies

Required

mandoc-1.14.6

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

Installation of efivar

First, fix an issue in Makefile causing the package to be rebuilt during installation: 

sed '/prep :/a\\ttouch prep' -i src/Makefile

Build efivar with the following commands: 

make

The test suite of this package is dangerous. Running it may trigger firmware bugs and make your system unusable without using some special hardware to reprogram the firmware.

Now, as the root user: 

make install LIBDIR=/usr/lib

Command Explanations

LIBDIR=/usr/lib: This option overrides the default library directory of the package (/usr/lib64, which is not used by LFS.)

Contents

Installed Programs: efisecdb and efivar
Installed Libraries: libefiboot.so, libefisec.so, and libefivar.so
Installed Directories: /usr/include/efivar

Short Descriptions

efisecdb

is an utility for managing UEFI signature lists

efivar

is a tool to manipulate UEFI variables

libefiboot.so

is a library used by efibootmgr

libefisec.so

is a library for managing UEFI signature lists

libefivar.so

is a library for the manipulation of EFI variables

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