I am trying to do a Debian install with no X, print server, etc. I only want to install the "standard system utilities" tasksel. But if I wanted to install certain packages like network-manager, firmware-linux-nonfree, and wireless-tools, how would I do this from within the Debian installer? (Once I reboot into fresh install, I have no network connection, no wireless-tools, etc and can't install anything without downloading .deb files and using dpkg). So I want to find a way to get to a terminal and manually install files while I do have a network connection, during the installer.
How do I install packages from the Debian install CD, once the tasksel portion of the installer has completed fetching and installing standard utilities? For instance, if I wanted to install network-manager from the Debian installer, how would I do that?