apt - Add repositories to Ubuntu server 14.04

I just booted 1st time into Ubuntu Server 14.04.1 LTS (no GUI), enabled UFW, went to update with sudo apt-get update and the results showed this:

Ign cdrom://Ubuntu-Server 14.04.1 LTS _Trusty Tahr_ - Release amd64    (20140722.3) Trusty InRelease
Ign cdrom://Ubuntu-Server 14.04.1 LTS _Trusty Tahr_ - Release amd64 (20140722.3) Trusty/main Translation-en_CA
Ign cdrom://Ubuntu-Server 14.04.1 LTS _Trusty Tahr_ - Release amd64 (20140722.3) Trusty/main Translation-en
Ign cdrom://Ubuntu-Server 14.04.1 LTS _Trusty Tahr_ - Release amd64 (20140722.3) Trusty/restricted Translation-en_CA
Ign cdrom://Ubuntu-Server 14.04.1 LTS _Trusty Tahr_ - Release amd64 (20140722.3) Trusty/restricted Translation-en
Reading package lists... Done

This is not what I expected to see. In my current desktop environment there is a long list that scrolls past in the terminal.

I assume that there are no repositories listed in the /etc/apt/source.list (haven't figured out how to read contents of that file yet)

What should I do?