Installation | Ubuntu
https://ubuntu.com/server/docs/installationFor amd64, download the install image from https://releases.ubuntu.com/20.04/. There are many ways to boot the installer but the simplest and commonest way is to create a bootable USB stick to boot the system to be installed with ( tutorials for other operating systems are also available). Booting the installer
Installation | Ubuntu
ubuntu.com › server › docsBasic installation. This chapter provides an overview of installing Ubuntu 20.04 Server Edition. There is more detailed documentation on other installer topics. Preparing to Install. This section explains various aspects to consider before starting the installation. System requirements