How To Install postgresql-13-pg-checksums on Kali Linux

Introduction

In this tutorial we learn how to install postgresql-13-pg-checksums on Kali Linux.

What is postgresql-13-pg-checksums

postgresql-13-pg-checksums is:

Data checksums allow the PostgreSQL database server to identify I/O failures when reading data from storage. The checksums stored in the page header of each data page are compared to the computed checksum of the read data.

Data checksums need to be activated at instance creation time, all current versions of PostgreSQL including v11 do not allow activating (or deactivating) checksums afterwards.

pg_checksums can activate or deactivate data checksums as long at the database cluster is shutdown cleanly. Activating checksums requires all database blocks to be read and all page headers to be updated, so can take a long time on a large database. Deactivating checksums only requires the cluster control file to be updated so is quick.

In addition, pg_checksums can verify the checksums in an offline cluster.

There are three methods to install postgresql-13-pg-checksums on Kali Linux. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install postgresql-13-pg-checksums Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install postgresql-13-pg-checksums using apt-get by running the following command:

sudo apt-get -y install postgresql-13-pg-checksums

Install postgresql-13-pg-checksums Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install postgresql-13-pg-checksums using apt by running the following command:

sudo apt -y install postgresql-13-pg-checksums

Install postgresql-13-pg-checksums Using aptitude

If you want to follow this method, you might need to install aptitude on Kali Linux first since aptitude is usually not installed by default on Kali Linux. Update apt database with aptitude using the following command.

sudo aptitude update

After updating apt database, We can install postgresql-13-pg-checksums using aptitude by running the following command:

sudo aptitude -y install postgresql-13-pg-checksums

How To Uninstall postgresql-13-pg-checksums on Kali Linux

To uninstall only the postgresql-13-pg-checksums package we can use the following command:

sudo apt-get remove postgresql-13-pg-checksums

Uninstall postgresql-13-pg-checksums And Its Dependencies

To uninstall postgresql-13-pg-checksums and its dependencies that are no longer needed by Kali Linux, we can use the command below:

sudo apt-get -y autoremove postgresql-13-pg-checksums

Remove postgresql-13-pg-checksums Configurations and Data

To remove postgresql-13-pg-checksums configuration and data from Kali Linux we can use the following command:

sudo apt-get -y purge postgresql-13-pg-checksums

Remove postgresql-13-pg-checksums configuration, data, and all of its dependencies

We can use the following command to remove postgresql-13-pg-checksums configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge postgresql-13-pg-checksums

Dependencies

postgresql-13-pg-checksums have the following dependencies:

• libc6
• postgresql-13

References

• postgresql-13-pg-checksums website

Summary

In this tutorial we learn how to install postgresql-13-pg-checksums package on Kali Linux using different package management tools: apt, apt-get and aptitude.