How to read CPM 5.25 floppy disks?

How to read CPM 5.25 floppy disks?

Omer Zak w1 at zak.co.il
Thu Dec 23 08:32:30 IST 2021


Debian has a 'cpmtools' package which is described as allowing CP/M
filesystem access.
I do not know if it supports control of the floppy disk drive to read
the CP/M way the iron oxide.

A Google search also turned up some articles about the subject, I did
not read them.


On Wed, 2021-12-22 at 21:56 -0500, Steve Litt wrote:
> Hi all,
> 
> Anyone have any ideas how to read (and obviously back up) my CPM 5.25
> diskettes left over from my Kaypro 2x CPM machine used 1984-1987?
> Somewhere I have a normal IBM PC compatible 5.25 drive, but CPM
> floppies had different formatting, I think both in software and in
> the
> iron oxide.
> 
> I'm thinking if I can ddrescue these things to a file, and loop-mount
> them using some sort of CPM format (didn't the mount command used to
> be
> able to do that?), maybe I could get the info into a file
> representation instead of a drive representation.
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