Instructions to convert OS-9 L1 02.01.00 from distribution media to a single 80T DSDD 720K floppy

As shipped, back in the day, many people were pretty unhappy that OS-9 barely fit on the 35T SSDD radio shack standard floppies. Like most people, I had upgraded to 40T DSDD holding more than twice as much data.

There's an elaborate process, which I will explain later, then attempt it, then fully document, to upgrade OS-9 to a full install on a 40T DSDD. Because I'm emulating, I see no reason not to use 80T DSDD aka 3.5 inch 720K floppy where I did this IRL in the 80s using 40T DSDD. I did in fact use a 3.5 inch floppy on OS-9 "back in the day" for perhaps a couple months; worked pretty well IIRC.

The end result is a bootable "full" OS-9 L1 disk that can be binary imaged and used for pretty much any purpose by adding other stuff to a copy of the daily driver floppy. Back in the day I added BASIC09 to one, and the Microware C compiler to another, and some word processor to another, etc.