Installing VirtualBox on Ubuntu using CLI

VirtualBox is a powerful tool for creating and managing virtual machines, allowing you to run multiple operating systems on a single machine. While there are many ways to install VirtualBox on Ubuntu, this article will show you how to do it using the command line interface (CLI).

Before we begin, make sure that your Ubuntu 20.04 server is set up according to the initial server setup guide, including a sudo non-root user and a firewall.

To follow this tutorial, you'll need the following:

* An Ubuntu 20.04 server

* The ability to use the command line interface (CLI)

In this tutorial, we will install Docker Community Edition (CE) on Ubuntu 20.04 using the CLI. We will then use Docker to create a virtual machine that is similar to VirtualBox.

Docker and VirtualBox are two different tools that serve the same purpose - to create and manage virtual machines. However, they have some key differences. Containers, such as those created by Docker, are more portable, more resource-friendly, and more dependent on the host operating system than traditional virtual machines. For a detailed introduction to the different components of a Docker container, check out The Docker Ecosystem: An Introduction to Common Components.

Containers let you run your applications in resource-isolated processes. Docker is an application that simplifies the process of managing application processes in containers. With Docker, you can create and manage containers using the command line interface or graphical user interface (GUI).

Now, let's get started with installing VirtualBox on Ubuntu using CLI.

Step 1: Add the VirtualBox repository

To install VirtualBox on Ubuntu, we need to add the VirtualBox repository to our system. We can do this by running the following command:

```

sudo apt update && sudo apt install -y virtualbox

```

This command will update the package index and then install VirtualBox.

Step 2: Install VirtualBox

Once the repository is added, we can install VirtualBox using the following command:

```

sudo apt-get install virtualbox

```

This command will download and install VirtualBox on our system.

Step 3: Start VirtualBox

After installing VirtualBox, we need to start it. We can do this by running the following command:

```

sudo service virtualbox start

```

This command will start VirtualBox and make it available for use.

Step 4: Create a new virtual machine

Now that VirtualBox is installed and started, we can create a new virtual machine. To do this, open VirtualBox and click on 'New' to create a new virtual machine.

In the 'Create New Virtual Machine' window, enter the name and operating system of your virtual machine, and then select the amount of RAM and storage you want to allocate. Click 'Next' to continue.

Step 5: Install the guest operating system

Once we have created our virtual machine, we need to install the guest operating system (such as Windows or Linux) on it. We can do this by clicking on 'Install Guest Additions' in the VirtualBox menu and following the prompts.

And that's it! With these steps, we have successfully installed VirtualBox on Ubuntu using the CLI.

Install virtualbox ubuntu by cli