Installing ArcaOS (OS/2) on modern PC hardware (Asus X570 mobo with a Ryzen 5 CPU) – booting and installing from USB flashdrive

My AMD Ryzen 5 PC is hanging when booting the ArcaOS installer from a USB DVD drive, so I’ve moved on to trying a bootable USB flash instead. I’m following the steps here. The install guide says to use: \dfsanwin.exe -q run aosboot.dfs … to create the USB, but this is prompting me to write …

USB bootable OS/2?

OS/2 was technically far superior than any other desktop OS available at it’s time. The fact that it continued to be used in ATMs by banks, ticket machines, voice mails systems, PABXs and various other systems for years after IBM sales and support was discontinued says everything. Even though it was discontinued by IBM in 2006, …