Change Debian Package list from CD to WEB

When installing Debian from CD and then afterwards trying to install additional packages using apt-get you are prompted to insert a CD. To change the source from CD to WEB.

vi /etc/apt/sources.list

Remark lines that start with:

deb cdrom:

Once the file has been saved you should now be able to update from the WEB.

apt-get update
apt-get upgrade
apt-get install <package-name>