How To Install pg-checksums-doc on Kali Linux
Introduction
In this tutorial we learn how to install pg-checksums-doc
on Kali Linux.
What is pg-checksums-doc
pg-checksums-doc 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.
This package contains the manpage.
There are three methods to install pg-checksums-doc
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 pg-checksums-doc Using apt-get
Update apt database with apt-get
using the following command.
sudo apt-get update
After updating apt database, We can install pg-checksums-doc
using apt-get
by running the following command:
sudo apt-get -y install pg-checksums-doc
Install pg-checksums-doc Using apt
Update apt database with apt
using the following command.
sudo apt update
After updating apt database, We can install pg-checksums-doc
using apt
by running the following command:
sudo apt -y install pg-checksums-doc
Install pg-checksums-doc 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 pg-checksums-doc
using aptitude
by running the following command:
sudo aptitude -y install pg-checksums-doc
How To Uninstall pg-checksums-doc on Kali Linux
To uninstall only the pg-checksums-doc
package we can use the following command:
sudo apt-get remove pg-checksums-doc
Uninstall pg-checksums-doc And Its Dependencies
To uninstall pg-checksums-doc
and its dependencies that are no longer needed by Kali Linux, we can use the command below:
sudo apt-get -y autoremove pg-checksums-doc
Remove pg-checksums-doc Configurations and Data
To remove pg-checksums-doc
configuration and data from Kali Linux we can use the following command:
sudo apt-get -y purge pg-checksums-doc
Remove pg-checksums-doc configuration, data, and all of its dependencies
We can use the following command to remove pg-checksums-doc
configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge pg-checksums-doc
Dependencies
pg-checksums-doc have the following dependencies:
References
Summary
In this tutorial we learn how to install pg-checksums-doc
package on Kali Linux using different package management tools: apt
, apt-get
and aptitude
.