Ubuntu 20.04 Burn ISO to DVD from command line

In this tutorial you will learn how to burn ISO image to DVD from command line using Ubuntu 20.04 Focal Fossa Linux desktop/server.

In this tutorial you will learn:

Software Requirements and Conventions Used

Software Requirements and Linux Command Line Conventions
Category	Requirements, Conventions or Software Version Used
System	Installed Ubuntu 20.04 or upgraded Ubuntu 20.04 Focal Fossa
Software	growisofs
Other	Privileged access to your Linux system as root or via the `sudo` command.
Conventions	# – requires given linux commands to be executed with root privileges either directly as a root user or by use of `sudo` command $ – requires given linux commands to be executed as a regular non-privileged user

Check your system whether it supports DVD burning. Start by opening a terminal window and execution of the bellow command:
```
$ cat /proc/sys/dev/cdrom/info
```
Your system should have at least one hardware device which supports DVD write. Check the output and look for Can write DVD-R. The integer 1 means that the DVD write is supported. Also take a note of the drive name supporting the DVD write. In this case the drive name is sr1 hence the full path to the DVD writer is /dev/sr1.
Next, download the ISO image you wish to burn to DVD. As an example, in this tutorial, we will burn downloaded Ubuntu 20.04 ISO image.
Install the ISO to DVD burning toolgrowisofs by using the apt command:
```
$ sudo apt install growisofs
```