How To Install dracut-live on CentOS 8

dracut-live is dracut modules to build a dracut initramfs with live image capabilities

Introduction

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

What is dracut-live

This package requires everything which is needed to build an initramfs with dracut, with live image capabilities, like Live CDs.

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

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

sudo dnf -y install dracut-live

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

sudo yum -y install dracut-live

How To Uninstall dracut-live on CentOS 8

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

sudo dnf remove dracut-live

dracut-live Package Contents on CentOS 8

/usr/lib/dracut/modules.d/90dmsquash-live
/usr/lib/dracut/modules.d/90dmsquash-live-ntfs
/usr/lib/dracut/modules.d/90dmsquash-live-ntfs/module-setup.sh
/usr/lib/dracut/modules.d/90dmsquash-live/apply-live-updates.sh
/usr/lib/dracut/modules.d/90dmsquash-live/[email protected]
/usr/lib/dracut/modules.d/90dmsquash-live/dmsquash-generator.sh
/usr/lib/dracut/modules.d/90dmsquash-live/dmsquash-live-genrules.sh
/usr/lib/dracut/modules.d/90dmsquash-live/dmsquash-live-root.sh
/usr/lib/dracut/modules.d/90dmsquash-live/dmsquash-liveiso-genrules.sh
/usr/lib/dracut/modules.d/90dmsquash-live/iso-scan.sh
/usr/lib/dracut/modules.d/90dmsquash-live/module-setup.sh
/usr/lib/dracut/modules.d/90dmsquash-live/parse-dmsquash-live.sh
/usr/lib/dracut/modules.d/90dmsquash-live/parse-iso-scan.sh
/usr/lib/dracut/modules.d/90livenet
/usr/lib/dracut/modules.d/90livenet/fetch-liveupdate.sh
/usr/lib/dracut/modules.d/90livenet/livenet-generator.sh
/usr/lib/dracut/modules.d/90livenet/livenetroot.sh
/usr/lib/dracut/modules.d/90livenet/module-setup.sh
/usr/lib/dracut/modules.d/90livenet/parse-livenet.sh
/usr/lib/dracut/modules.d/99img-lib
/usr/lib/dracut/modules.d/99img-lib/img-lib.sh
/usr/lib/dracut/modules.d/99img-lib/module-setup.sh

References

Summary

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