[Coco] Formatting L.R. Tech Hard Drive in OS9 Level II

[Steven Hirsch]

On Wed, 13 Jan 2016, David Gettle wrote:

> I had one of the LRTech/Owlware systems, formatting the hard drive only
> needs the OS-9 format command (same command used to format floppies). The
> trick is to get the head/sector count correct for the drive. the LRTech
> hardware and OS-9 drivers address the disk in 256 bite sectors, so a 40MB
> hard drive does actually format out to nearly 40 MB. Dmode is your friend!
> you NEED Dmode to adjust the heads, cylinders, and sector count for the HD,
> also you will need to create a HX.dd for the second drive. it's a lot of
> trial and error to get those set up correctly. the only hard drive
> descriptor you should not format is /dd.

Ok, that makes sense.  The low-level portions of the driver would use that 
geometry data to put together the SASI command that sets up the 
controller.


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