How To Install overlayroot on Ubuntu 22.04
Introduction
In this tutorial we learn how to install overlayroot
on Ubuntu 22.04.
What is overlayroot
overlayroot is:
This package adds functionality to an initramfs built by initramfs-tools. When installed and configured, the initramfs will mount an overlayfs filesystem on top of a read-only root volume.
The changes can be written to a in-memory temporary filesystem, a filesystem on an existing block device, or a dmcrypt encrypted block device.
There are three methods to install overlayroot
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 overlayroot Using apt-get
Update apt database with apt-get
using the following command.
sudo apt-get update
After updating apt database, We can install overlayroot
using apt-get
by running the following command:
sudo apt-get -y install overlayroot
Install overlayroot Using apt
Update apt database with apt
using the following command.
sudo apt update
After updating apt database, We can install overlayroot
using apt
by running the following command:
sudo apt -y install overlayroot
Install overlayroot 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 overlayroot
using aptitude
by running the following command:
sudo aptitude -y install overlayroot
How To Uninstall overlayroot on Ubuntu 22.04
To uninstall only the overlayroot
package we can use the following command:
sudo apt-get remove overlayroot
Uninstall overlayroot And Its Dependencies
To uninstall overlayroot
and its dependencies that are no longer needed by Ubuntu 22.04, we can use the command below:
sudo apt-get -y autoremove overlayroot
Remove overlayroot Configurations and Data
To remove overlayroot
configuration and data from Ubuntu 22.04 we can use the following command:
sudo apt-get -y purge overlayroot
Remove overlayroot configuration, data, and all of its dependencies
We can use the following command to remove overlayroot
configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge overlayroot
References
Summary
In this tutorial we learn how to install overlayroot
package on Ubuntu 22.04 using different package management tools: apt
, apt-get
and aptitude
.