How To Install clevis-dracut on CentOS 8

clevis-dracut is Dracut integration for clevis

Introduction

In this tutorial we learn how to install clevis-dracut on CentOS 8.

What is clevis-dracut

Automatically unlocks LUKS block devices in early boot.

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

Install clevis-dracut 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 clevis-dracut using dnf by running the following command:

sudo dnf -y install clevis-dracut

Install clevis-dracut 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 clevis-dracut using yum by running the following command:

sudo yum -y install clevis-dracut

How To Uninstall clevis-dracut on CentOS 8

To uninstall only the clevis-dracut package we can use the following command:

sudo dnf remove clevis-dracut

clevis-dracut Package Contents on CentOS 8

/usr/lib/dracut/modules.d/60clevis
/usr/lib/dracut/modules.d/60clevis-pin-sss
/usr/lib/dracut/modules.d/60clevis-pin-sss/module-setup.sh
/usr/lib/dracut/modules.d/60clevis-pin-tang
/usr/lib/dracut/modules.d/60clevis-pin-tang/module-setup.sh
/usr/lib/dracut/modules.d/60clevis-pin-tpm2
/usr/lib/dracut/modules.d/60clevis-pin-tpm2/module-setup.sh
/usr/lib/dracut/modules.d/60clevis/clevis-hook.sh
/usr/lib/dracut/modules.d/60clevis/module-setup.sh

References

Summary

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