Debian newbie here. I've only had the operating system for 3 days and most of my time spent with it has been fixing the state of the install. I couldn't get the installer to recognize iwlwifi firmware files, even when I inserted a USB containing all of the versions I could find for my card. I did an offline install, which did not come with NetworkManager so I can't connect to the internet with my Debian device at present. I used dpkg to manually install its dependencies from a flash drive, but it complains that one dependency, PolicyKit-1, which apparently did come pre-installed, is not yet configured. How would I go about configuring it so that I can install NetworkManager and actually update my system?
Thanks.
Edit: forgot to mention I got the firmware end of things working.