This guide covers everything you need to know: downloading the correct ISO, verifying its integrity, and creating bootable USB/DVD media. Ubuntu releases two main types of ISO images:
Introduction The Ubuntu ISO is a disk image file containing the entire Ubuntu operating system. Whether you want to install Ubuntu on your computer or run it as a Live system without making permanent changes, the ISO file is your starting point. iso ubuntu
A: amd64 is for 64-bit Intel/AMD PCs. arm64 is for ARM-based devices like Raspberry Pi or some laptops (M1/M2 Macs require extra steps). This guide covers everything you need to know: