So, I just got a new 2018 Mac mini though my university, and of course they always load computers up with their antivirus software, their own login, Alertus desktop, etc. And, as I always do, I promptly wipe the drive and reload it with my own software. This one has given me no end of headaches, I suspect due to the T2 chip. For example, when I try to create a Mojave installer out of a USB drive using this mini, I get a message that says "IT has not yet approved Mojave", and the installer gets killed (in the terminal, if I am using terminal commands, or it just tosses out that dialog and fails is using, say, Diskmaker X8). Any ideas how to take control of my machine? I tried booting in recovery mode and turning off the firmware restrictions; unplugging from the internet, and cloning the drive from another machine, but nothing seems to work.