How To Install pid1 on Ubuntu 22.04
Introduction
In this tutorial we learn how to install pid1 on Ubuntu 22.04.
What is pid1
pid1 is:
Library/executable for initializing signal handlers, spawning and child process, and reaping orphan processes. These are the responsibilities that must be fulfilled by the initial process in a Unix system, and in particular comes up when running Docker containers.
This library/executable will automatically detect if it is run as some process besides PID1 and, if so, use a straightforward exec system call instead.
There are three methods to install pid1 on Ubuntu 22.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install pid1 Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install pid1 using apt-get by running the following command:
sudo apt-get -y install pid1
Install pid1 Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install pid1 using apt by running the following command:
sudo apt -y install pid1
Install pid1 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 pid1 using aptitude by running the following command:
sudo aptitude -y install pid1
How To Uninstall pid1 on Ubuntu 22.04
To uninstall only the pid1 package we can use the following command:
sudo apt-get remove pid1
Uninstall pid1 And Its Dependencies
To uninstall pid1 and its dependencies that are no longer needed by Ubuntu 22.04, we can use the command below:
sudo apt-get -y autoremove pid1
Remove pid1 Configurations and Data
To remove pid1 configuration and data from Ubuntu 22.04 we can use the following command:
sudo apt-get -y purge pid1
Remove pid1 configuration, data, and all of its dependencies
We can use the following command to remove pid1 configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge pid1
References
Summary
In this tutorial we learn how to install pid1 package on Ubuntu 22.04 using different package management tools: apt, apt-get and aptitude.
