How To Install zchunk on CentOS 8

zchunk is Compressed file format that allows easy deltas

Introduction

In this tutorial we learn how to install zchunk on CentOS 8.

What is zchunk

zchunk is a compressed file format that splits the file into independent chunks. This allows you to only download the differences when downloading a new version of the file, and also makes zchunk files efficient over rsync. zchunk files are protected with strong checksums to verify that the file you downloaded is in fact the file you wanted.

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

Install zchunk 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 zchunk using dnf by running the following command:

sudo dnf -y install zchunk

Install zchunk 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 zchunk using yum by running the following command:

sudo yum -y install zchunk

How To Uninstall zchunk on CentOS 8

To uninstall only the zchunk package we can use the following command:

sudo dnf remove zchunk

zchunk Package Contents on CentOS 8

/usr/bin/unzck
/usr/bin/zck
/usr/bin/zck_delta_size
/usr/bin/zck_gen_zdict
/usr/bin/zck_read_header
/usr/bin/zckdl
/usr/lib/.build-id
/usr/lib/.build-id/39
/usr/lib/.build-id/39/6ca4aea1c995a48fd93de23e8fa1f086289049
/usr/lib/.build-id/78
/usr/lib/.build-id/78/02e0b828ff0aa14d7cec8f926f0238166086ec
/usr/lib/.build-id/8a
/usr/lib/.build-id/8a/dd3e967194d01809e1b22d5f3ffdeb0b94cec0
/usr/lib/.build-id/8f
/usr/lib/.build-id/8f/6a5acd5415eef93aec71290913a6741d3154f6
/usr/lib/.build-id/c4
/usr/lib/.build-id/c4/19e854b61d9f710f5b4c4efd822109b11f4a8f
/usr/lib/.build-id/e9
/usr/lib/.build-id/e9/1002e3a2af6556541de001a0d7f735d6377061
/usr/libexec/zck_gen_xml_dictionary
/usr/share/doc/zchunk
/usr/share/doc/zchunk/README.md
/usr/share/doc/zchunk/contrib
/usr/share/doc/zchunk/contrib/gen_xml_dictionary
/usr/share/man/man1/unzck.1.gz
/usr/share/man/man1/zck.1.gz
/usr/share/man/man1/zck_delta_size.1.gz
/usr/share/man/man1/zck_gen_zdict.1.gz
/usr/share/man/man1/zck_read_header.1.gz
/usr/share/man/man1/zckdl.1.gz

References

Summary

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