apt-get requests installation media after installing Debian 7

I installed Debian to VMware Fusion 6 on OS X via the first ISO from Debian's image archive.

Now, when I try to run apt-get under certain conditions, i.e. apt-get install make, I get the following error:

Media change: please insert the disc labeled
 'Debian GNU/Linux 7.3.0 _Wheezy_ - Official i386 DVD Binary-1 20131215-03:40'
in the drive '/media/cdrom/' and press enter

I have no idea why it would be prompting me for physical media of any sort -- any ideas?

Solution 1:

Easy to fix. Edit this file sudo nano /etc/apt/sources.list then comment out #deb cdrom:

Here's my wheezy sources.list

# deb cdrom:[Debian GNU/Linux 7.0.0 _Wheezy_ - Official amd64 CD Binary-1 20130$

# deb cdrom:[Debian GNU/Linux 7.0.0 _Wheezy_ - Official amd64 CD Binary-1 20130$

deb http://ftp.us.debian.org/debian/ wheezy main
deb-src http://ftp.us.debian.org/debian/ wheezy main

deb http://security.debian.org/ wheezy/updates main
deb-src http://security.debian.org/ wheezy/updates main

# wheezy-updates, previously known as 'volatile'
deb http://ftp.us.debian.org/debian/ wheezy-updates main
deb-src http://ftp.us.debian.org/debian/ wheezy-updates main