pkg

[Quartz]

> I installed from an installation disk.

Err, define "installation disk". You purchased a cd/dvd? Or you burned 
dvd1.iso? Imaged memstick.img to a usb drive? Something else?


>The packages are on the disk
> but not the package utilities.

Ok, so the only image that contains any packages would be the dvd1.iso, 
(which only contains a handful of super common stuff). Have you gone 
though the pkg pages in the docs?

https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/pkgng-intro.html