Upon booting, you will see the RHEL 7.9 welcome screen. Select "Install Red Hat Enterprise Linux 7.9" and press Enter. This launches the installer. It guides you through a series of configuration steps, which are detailed below.
You must write the ISO to a USB flash drive (minimum 8GB). Use automated utility tools like Rufus (on Windows) or the command-line dd tool on Linux systems: Rhel-server-7.9-x86-64-dvd.iso
The "DVD" designation signifies that this is a full binary installation image. Unlike the "Boot" or "Minimal" ISO variants, the DVD ISO contains a comprehensive repository of core software packages, development tools, and desktop environments, allowing for a complete offline operating system installation. Core Features and Lifecycle Value of RHEL 7.9 Upon booting, you will see the RHEL 7