You can download UNIX/32v here: https://sourceforge.net/project/downloading.php?group_id=204974&filename=unix32v-0.3.exe&a=43027585
As a simple windows installer. Just install and run and you’ll be at the login: prompt in no time!
32v is the common ancestor to both 4BSD and SYSV. While primitave by modern standards, this is the version where all 32bit unix’s can be traced back to. This is also the release that was central in the AT&T vs CSRG lawsuit. It is basically a port of the PDP-11’s v7 unix onto the VAX 11/780. I left the default kernel which is restricted to 1MB of ram, and 2 disks.. Only one disk is currently being used.
This version is FREE thanks to the old Caldera license.
Sadly, the DZ11 seems to not be working correctly so this is limited to a single user.. I have made slight modifications to the bootloader & init to print the Caldera message, and to boot 32v into multi user mode.
For what it’s worth, this is a list of the games of 32v:
This copy of 32v is made possible from the instructions found here:
http://zazie.tom-yam.or.jp/starunix/32v/32v.html (Thanks to Nao!!)