Appendix A. Installation Howto A.1. Booting the installer A.1.1. Booting from CDROM A.1.2. Booting from network A.2. Installation 82 Next the installer will try to detect your network hardware and set up networking by DHCP. If you are not on a network or do not have DHCP, you will be given the opportunity to configure the network manually. Now sit back while the installer detects some of your hardware, and loads the rest of itself from CD, USB, etc. You may be asked to confirm your keyboard layout. Choose the default unless you know better. After a while you will be asked to select your language. Use the arrow keys to pick a language and press Enter to continue. Next you’ll be asked to select your country, with the choices including countries where your language is spoken. If it’s not on the short list, a list of all the countries in the world is available. Once the installer starts, you will be greeted with an initial screen. Press Enter to boot, or read the instructions for other boot methods and parameters (see Section 5.3). It’s also possible to boot the Ubuntu installer completely from the net. The various methods to netboot depend on your architecture and netboot setup. The files in netboot/ can be used to netboot the Ubuntu installer. First of all download the image for your architecture and burn it to a CD/DVD. The subsections below will give the details about which image(s) you should get for each possible means of installation. The easiest way is probably to download the (CDROM) image, because the files most people need are there on the image. Some installation methods require other images than CD images. The debian-installer home page (http://www.debian.org/devel/debian-installer/) has links to other images. Section 4.2.1 explains how to find images on Ubuntu mirrors. For more information on where to get CDs, see Section 4.1. This document describes how to install Ubuntu 20.04 “Focal Fossa” for the 64-bit ARM (“arm64”). It is a quick walkthrough of the installation process which should contain all the information you will need for most installs. When more information can be useful, we will link to more detailed explanations in other parts of this document.