Reading ESDI disks

[Mattis Lind]

What is the best way of dumping the contents of an ESDI disk?

I have an original IBM Enhanced ESDI ISA controller board. Could that be
used under Linux? Or NetBSD/FreeNSD? I googled but didn't find much.

Is there any other way of dumping the disk contents?

In theory it should be just a matter of clocking the raw data and finding
the marks and extracting the data. Has anyone done something similar?

/Mattis