How To Install upgrade-system on Ubuntu 18.04
Introduction
In this tutorial we learn how to install upgrade-system on Ubuntu 18.04.
What is upgrade-system
upgrade-system is:
Upgrade-system offers a convenient way to keep a Debian system up-to-date, yet free from accumulated cruft such as obsolete libraries.
It is particularly useful on systems that mix packages from different releases (stable/testing/unstable) and on desktop systems where packages are frequently installed or removed according to evolving user tastes.
By default, it is configured to purge all packages that are not listed as another package’s dependency. Less drastic settings are possible by editing /etc/upgrade-system.conf(5).
There are three methods to install upgrade-system on Ubuntu 18.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install upgrade-system Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install upgrade-system using apt-get by running the following command:
sudo apt-get -y install upgrade-system
Install upgrade-system Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install upgrade-system using apt by running the following command:
sudo apt -y install upgrade-system
Install upgrade-system 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 Ubuntu. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install upgrade-system using aptitude by running the following command:
sudo aptitude -y install upgrade-system
How To Uninstall upgrade-system on Ubuntu 18.04
To uninstall only the upgrade-system package we can use the following command:
sudo apt-get remove upgrade-system
Uninstall upgrade-system And Its Dependencies
To uninstall upgrade-system and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove upgrade-system
Remove upgrade-system Configurations and Data
To remove upgrade-system configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge upgrade-system
Remove upgrade-system configuration, data, and all of its dependencies
We can use the following command to remove upgrade-system configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge upgrade-system
References
Summary
In this tutorial we learn how to install upgrade-system package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
