OPNsense on a Palo Alto Firewall Appliance

I picked up a Palo Alto Cloudgenix ION 2000 off of eBay and decided to try and stick OPNsense on it. It has a ethernet ports, 4GB of RAM, 128GB SSD, and an Intel Atom CPU. What I hadn't considered was a lack of any video out on this thing, making it difficult to load a different OS. After some searching, I came across this helpful article. Installing OPNsense (or another OS like pfSense, for example) involves dismantling the box. It's as easy as removing eight screws from the chassis, opening up the box to access the SSD, and removing an additional three screws from the SSD mounting plate to remove the SSD. I didn't bother removing the plate. Once removed, I attached the SSD to a SATA to USB adapter - this one in particular was a piece I salvaged after schucking a 3.5" 14TB hard drive from an external drive enclosure. Is it janky? Yes. Is it functional? Absolutely. The next step was finding the right OPNsense image to use from the four different options provided on the website. The…