How To Install pg-checksums-doc on Debian 12
Introduction
In this tutorial we learn how to install pg-checksums-doc on Debian 12.
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_ext 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_ext can verify the checksums in an online cluster.
This package contains the manpage.
There are three methods to install pg-checksums-doc on Debian 12. 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 first since aptitude is usually not installed by default on Debian. 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 Debian 12
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 Debian 12, 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 Debian 12 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 Debian 12 using different package management tools: apt, apt-get and aptitude.
