Re: archiving floppy disks, natively on CP/M

On Mon, 18 Nov 2024 16:23:33 -0000 (UTC), Jeff Jonas wrote:

I still have a Z80 CP/M SBC (single board computer).
When I decommissioned it, I used the modem/file transfer program to
xmodem-batch send all the files to PROCOMM on a MS-DOS PC.
 
I plan to reconstruct that setup but this time to Linux using rz:
    rx, rb, rz - XMODEM, YMODEM, ZMODEM (Batch) file receive
 
What of the boot tracks?
Is there any CP/M equivalent to Unix/Linux "dd"
or hex dump?
 
I have a greaseweazle but have not set up the toolchain.
Most of my CP/M floppies are NOT bootable so archiving the files is
fine.
 
thanks

Digital Research did not provide any such utility, the closest being
SYSGEN.COM which is actually something vendors were expected to customize.
But the general code to do a raw read of a disk is pretty boiler-plate.

What I did way back when was to write a simple program to read the entire
disk (raw) and dump in HEX out a serial port. I then captured that output
on Linux, after which it was a fairly simple matter to turn that HEX dump
into a binary file that cpmtools can use (or potentially anything like an
IMD image). I don't know if I can locate any of that (from 25 years ago),
but it is not too difficult to reconstruct.

--
- Doug