Issues with Installing EPrints on Ubuntu 20.04

N.B. It is assumed that you are installing the latest version of 3.4. Earlier versions may have issues not listed here.

xpdf Deb package no longer exists: This has been removed as a dependency since EPrints 3.4.3, as it is no longer specifically required by EPrints.
MySQL deprecated syntax: GRANT PRIVILEGES command used by epadmin has been modified to avoid using deprecated syntax since EPrints 3.4.3.
MySQL root user cannot be used: This is now explained under EPrints' Getting Started instructions. as it is typical for most modern Linux operating systems.