So I've imaged all the disks I found. Only 9 differ io.sys versions for 5 known MS-DOS versions: 2.01, 2.05, 2.11, 3.10 and 3.10b... I'll upload once I sort it out. And it looks like exidyboy may have stumbled upon someone with a rare hard disk controller....

Ok. There were 10, but one was 8192 spaces which I eliminated as a legit version...

Last edited by bsdimp; 01/19/21 03:55 AM.