How To Install efivar-libs on CentOS 8

efivar-libs is Library to manage UEFI variables Library to manage UEFI variables

Introduction

In this tutorial we learn how to install efivar-libs on CentOS 8.

What is `efivar-libs`

Library to allow for the simple manipulation of UEFI variables. efivar-libs 37 4.el8 x86_64 107 k efivar-37-4.el8.src.rpm baseos Library to manage UEFI variables https LGPL-2.1 Library to allow for the simple manipulation of UEFI variables.

We can use yum or dnf to install efivar-libs on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install efivar-libs.

Install efivar-libs on CentOS 8 Using dnf

Update yum database with dnf using the following command.

sudo dnf makecache --refresh

The output should look something like this:

CentOS Linux 8 - AppStream                                       43 kB/s | 4.3 kB     00:00    
CentOS Linux 8 - BaseOS                                          65 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - ContinuousRelease                               43 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - Extras                                          23 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - FastTrack                                       40 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - HighAvailability                                36 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - Plus                                            24 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - PowerTools                                      50 kB/s | 4.3 kB     00:00    
Extra Packages for Enterprise Linux Modular 8 - x86_64           13 kB/s | 9.2 kB     00:00    
Extra Packages for Enterprise Linux 8 - x86_64                   24 kB/s | 8.5 kB     00:00    
Metadata cache created.

After updating yum database, We can install efivar-libs using dnf by running the following command:

sudo dnf -y install efivar-libs

Install efivar-libs on CentOS 8 Using yum

Update yum database with yum using the following command.

sudo yum makecache --refresh

The output should look something like this:

CentOS Linux 8 - AppStream                                       43 kB/s | 4.3 kB     00:00    
CentOS Linux 8 - BaseOS                                          65 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - ContinuousRelease                               43 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - Extras                                          23 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - FastTrack                                       40 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - HighAvailability                                36 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - Plus                                            24 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - PowerTools                                      50 kB/s | 4.3 kB     00:00    
Extra Packages for Enterprise Linux Modular 8 - x86_64           13 kB/s | 9.2 kB     00:00    
Extra Packages for Enterprise Linux 8 - x86_64                   24 kB/s | 8.5 kB     00:00    
Metadata cache created.

After updating yum database, We can install efivar-libs using yum by running the following command:

sudo yum -y install efivar-libs

How To Uninstall efivar-libs on CentOS 8

To uninstall only the efivar-libs package we can use the following command:

sudo dnf remove efivar-libs

efivar-libs Package Contents on CentOS 8

/usr/lib/.build-id
/usr/lib/.build-id/63
/usr/lib/.build-id/63/f809afdc603e68b2490db79f63c66a4462bdb5
/usr/lib/.build-id/8e
/usr/lib/.build-id/8e/eb03966980d81ed50d95b291d3b58330c415ac
/usr/lib64/libefiboot.so.1
/usr/lib64/libefiboot.so.1.37
/usr/lib64/libefivar.so.1
/usr/lib64/libefivar.so.1.37
/usr/lib/.build-id
/usr/lib/.build-id/98
/usr/lib/.build-id/98/4f6dda2cce887717e42798d26ad5fab29ebcc8
/usr/lib/.build-id/df
/usr/lib/.build-id/df/da3de69713f020dc32f30afb52c089a5d8923b
/usr/lib/libefiboot.so.1
/usr/lib/libefiboot.so.1.37
/usr/lib/libefivar.so.1
/usr/lib/libefivar.so.1.37

References

[efivar-libs website](https://github.com/rhboot/efivar https://github.com/rhboot/efivar)

Summary

In this tutorial we learn how to install efivar-libs on CentOS 8 using yum and dnf.