How To Install zfs-initramfs on Ubuntu 18.04

In this tutorial we learn how to install zfs-initramfs on Ubuntu 18.04. zfs-initramfs is OpenZFS root filesystem capabilities for Linux - initramfs

Introduction

In this tutorial we learn how to install zfs-initramfs on Ubuntu 18.04.

What is zfs-initramfs

zfs-initramfs is:

The Z file system is a pooled filesystem designed for maximum data integrity, supporting data snapshots, multiple copies, and data checksums.

This package adds OpenZFS to the system initramfs with a hook for the initramfs-tools infrastructure.

There are three methods to install zfs-initramfs 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 zfs-initramfs Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install zfs-initramfs using apt-get by running the following command:

sudo apt-get -y install zfs-initramfs

Install zfs-initramfs Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install zfs-initramfs using apt by running the following command:

sudo apt -y install zfs-initramfs

Install zfs-initramfs 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 zfs-initramfs using aptitude by running the following command:

sudo aptitude -y install zfs-initramfs

How To Uninstall zfs-initramfs on Ubuntu 18.04

To uninstall only the zfs-initramfs package we can use the following command:

sudo apt-get remove zfs-initramfs

Uninstall zfs-initramfs And Its Dependencies

To uninstall zfs-initramfs and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:

sudo apt-get -y autoremove zfs-initramfs

Remove zfs-initramfs Configurations and Data

To remove zfs-initramfs configuration and data from Ubuntu 18.04 we can use the following command:

sudo apt-get -y purge zfs-initramfs

Remove zfs-initramfs configuration, data, and all of its dependencies

We can use the following command to remove zfs-initramfs configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge zfs-initramfs

References

Summary

In this tutorial we learn how to install zfs-initramfs package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.