Install VirtualBox on Ubuntu 20.04 step by step instructions

1. Install VirtualBox from command line

   To install virtualbox from a command line open the terminal window and enter the following apt command:

   $ sudo apt install virtualbox
   

   All done. To start the Virtualbox execute:

   $ virtualbox
   

   You can now for example test the VirtualBox installation by creating a new Ubuntu 64-bit virtual machine and booting into Ubuntu 20.04 downloaded ISO image.
   
   Optionally you can now install VirtualBox Extension Pack to add some extra features to your VirtualBox installation.

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2. Install VirtualBox from GNOME Desktop


Use the top left Activities menu to open the Software application.

Search for virtualbox keyword.

To begin the VirtualBox installation hit the install button.

Enter your password. Your user must belong to the sudo group in order to proceed with the installation.

Once the VirtualBox installation is completed simply click on Launch button or use Activities menu to start the VirtualBox application.