How To Install overlayroot on Debian 12

Learn how to install overlayroot on Debian 12 with this tutorial. overlayroot is use an overlayfs on top of a read-only root filesystem

Introduction

In this tutorial we learn how to install overlayroot on Debian 12.

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 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 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 Debian. 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 Debian 12

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 Debian 12, we can use the command below:

sudo apt-get -y autoremove overlayroot

Remove overlayroot Configurations and Data

To remove overlayroot configuration and data from Debian 12 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

Dependencies

overlayroot have the following dependencies:

References

Summary

In this tutorial we learn how to install overlayroot package on Debian 12 using different package management tools: apt, apt-get and aptitude.