non-PC Floppy imaging

Warner Losh imp at
Fri Jan 5 13:56:13 CST 2018

On Fri, Jan 5, 2018 at 12:52 PM, Guy Sotomayor via cctalk <
cctalk at> wrote:

> Hi,
> I now have a number of uCode diskettes for my IBM 4331.  I would somehow
> like to image them so:
> a) I have backups in case the floppies themselves go bad
> b) be able to investigate their contents in case I have to “merge” the
> contents of multiple floppies to
>      make a single good one
> These are all 8” diskettes.
> The complicating factors in all of this are:
> a) any text (e.g. strings) are going to be in EBCDIC rather than ASCII
> b) each uCode diskette was presumably serialized to the CPU it was for
> c) not sure what the “on-disk” structure looks like
> d) the only 8” diskette drives that I have are in IBM (non-PC) equipment
> Any ideas/comments would be welcome.

I love the imaging capabilities of kryoflux (
You'd have to remove the 8" floppy from the IBM and connect it to the
kyroflux to do the imaging.


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