where does one find the graphics/wifi/bluetooth firmware packages in the packagebase install medium?

Hi,
I'm trying to wrap my head around a couple of hurdles
regarding both packagebase and getting the necessary
firmware installed. More concisely, on a fresh laptop;
how can I use fwget(8) to get/install firmware if I don't
already have the firmware loaded to bring up the wifi?
It'd be nice if the firmware was already available on
the install media (disc1.iso memstick.img). Is it? I
can't seem to locate it.

Thank you!

--Chris