Beyond Linux® From Scratch (System V Edition) - Version r12.2-875

Chapter 5. File Systems and Disk Management

efivar-39

Introduction to efivar

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

[Note]

Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

Package Information

efivar Dependencies

Recommended

mandoc-1.14.6

Installation of efivar

[Note]

Note

This package cannot function properly on a 32-bit system with a 64-bit UEFI implementation. Don't install this package (or efibootmgr) on 32-bit system unless you are absolutely sure you have a 32-bit UEFI implementation, which is very rare in practice.

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).

ENABLE_DOCS=0: Disable the generation of man pages. Append this option after the make and make install commands if you don't need the man pages to allow building this package without mandoc-1.14.6 installed.

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