This section describes how to boot the system from the installation media which was prepared using the instructions in
<xref linkend="bsdinstall-installation-media"/>. When using a bootable USB stick, plug in the
<acronym>USB
</acronym> stick before turning on the computer. When booting from
<acronym>CD
</acronym> or
<acronym>DVD
</acronym>, turn on the computer and insert the media at the first opportunity. How to configure the system to boot from the inserted media depends upon the architecture.