x86/DOS system backup via rs232?

[william degnan]

<
On Nov 13, 2015 4:47 AM, "Christian Corti" <cc at informatik.uni-stuttgart.de>
wrote:
>
> On Thu, 12 Nov 2015, Tom Moss wrote:
>>
>> I've never seen anything works on the sector level, but there are plenty
of
>
>
> There is DITU (Disk-Image Transfer Utility) for MS-DOS, and it's free
including C source code. I use it e.g. to image the hard disk of a DOS PC
into a file (either network or parallel ZIP drive).
>
ftp://ftp.oldskool.org/pub/misc/Hardware/IBM/PCjr%20magazines%20and%20resources/Software/Ditu/
> I've modified the program a bit to support retries and TurboC.
>
> Christian

I used to use a program called Laplink, which came with special serial and
parallel option cables to transfer files from one dos  machine to another.
It was useful to "image" DOS computers with it.

I don't think these were straight through cables and you needed the laplink
software to be running on both sides.  I see the cables on ebay, I picked
up a set a few years ago to move contents of similar MS DOS system. Serial
is much slower than parallel obviously.

If you must use Linux, you may find something that emulates dos, or you can
rewrite the receiving - end Linux equivalent of laplink if it has not
already been done.

Bill Degnan
twitter: billdeg
vintagecomputer.net