How To Install dracut-squash on CentOS 8

dracut-squash is dracut module to build an initramfs with most files in a squashfs image dracut module to build an initramfs with most files in a squashfs image

Introduction

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

What is dracut-squash

This package provides a dracut module to build an initramfs, but store most files in a squashfs image, result in a smaller initramfs size and reduce runtime memory usage. dracut-squash 049 135.git20210121.el8 x86_64 58 k dracut-049-135.git20210121.el8.src.rpm baseos dracut module to build an initramfs with most files in a squashfs image https GPLv2+ and LGPLv2+ This package provides a dracut module to build an initramfs, but store most files in a squashfs image, result in a smaller initramfs size and reduce runtime memory usage.

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

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

sudo dnf -y install dracut-squash

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

sudo yum -y install dracut-squash

How To Uninstall dracut-squash on CentOS 8

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

sudo dnf remove dracut-squash

dracut-squash Package Contents on CentOS 8

/usr/lib/dracut/modules.d/99squash
/usr/lib/dracut/modules.d/99squash/clear-squash.sh
/usr/lib/dracut/modules.d/99squash/init.sh
/usr/lib/dracut/modules.d/99squash/module-setup.sh
/usr/lib/dracut/modules.d/99squash/setup-squash.sh
/usr/lib/dracut/modules.d/99squash/shutdown.sh
/usr/lib/dracut/modules.d/99squash/squash-mnt-clear.service

References

Summary

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