which both produce the following error when selecting the ISO: This ISO image doesn't appear to use either.įrom the main Rufus page, I've tested versions: This version of Rufus only supports bootable ISOs based on 'bootmgr/WinPE' or 'isolinux'. all of which produce the following error when selecting the ISO: I've tested the following versions of Rufus from this link: So far I've tried this ISO in several versions of Rufus and the latest version of UNetbootin. I'm using the ISO for MS-DOS 6.22 found at AllBootDisks. I can't risk using FreeDOS or any other version of DOS because I'm working with a very niche utility that has the potential to break expensive things if things are wrong. I'm trying to create a bootable USB for MS-DOS 6.22.
