This is the original, unmodified disk dump. Appears to work but needs to be serialized which we do not have the activation key for any longer.
Here's a zip file containing non-serialized versions of the informix binaries.
Also included is a small C program that can deserialized informix binaries, in either from disk images or tar files. You'd run it like this "deserialize informix1.dc42 informix2.dc42 informix3.dc42"
I don't know whether or not we'd need to also brand the libraries to get them working, haven't tested the informix sample c program libraries, as my Xenix Lisa only has a 5MB disk since it's a 2/5, but the main binary shows a curses style menu, and all the other tools start up. I might revisit this after I get LisaEm to boot Xenix.