[alkz]

Around 15 years ago I got my hands on a quadra 700 and managed to install A/UX on it. I don't remember the details but i really struggled to find an external SCSI CDROM drive compatible with the OS, if memory serves me well there were just like 2/3 specific drives supported by the installer. In the end I probably used a SUN one which looked like a mini pizza box sparcstation.

Taking also in account that that version of A/UX ran only on the quadra 700/800/950, it's probably one of the OS with less hardware support around

The OS itself was so simple, it didn't even use init scripts to start its services, but everything was (re)spawned by /etc/inittab like /bin/getty; this was so clever I started doing it with all the services I wanted to automatically restart on my other linux servers

[scruffyherder]

It's SYSVr2 so it's /etc/inittab to control what runs at what runlevel. then inetd reads /etc/servers to decided what to listen for at the network level.