On Sun, 26 Feb 2023, Chris Zach via cctalk wrote:
Install DOS and Format.exe on a 3.5 floppy Fire it up
and when running
QRST try selecting the "B" drive. That used to (on a single disk system)
prompt you to switch floppies back and forth which *might* work,
allowing me to write the image on a second floppy.
. . .
Or...
Find a 1.2mb 5.25 floppy in my pile of stuff.
Load DOS on the 3.5.
Put the 5.25 in as drive B:
Format the 5.25 with format b: /s /v to put the system on it.
Boot off B:
Copy the stupid image from A: to B:
Run QRST
Switch A floppy with a new disk and try extracting to it.
Which versions of DOS let you boot off B: ?