User guide

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Note to advanced users: Keep in mind that with HDOS you can have up to seven active device
drivers, each which may reference a maximum of eight units. Suppose you want to have all HDOS on
the Winchester and no CP/M. You could have, say, 10 HDOS partitions on the hard disk Set up two
SY.DVD device drivers. Give one a category number of 4, for instance (see SASIXUxx
documentation), and the other a category number of, say 5 for an example. Now you could run
DVDDKGEN for each driver.
This will give you two hard device drivers (assuming you have copied two copies and given them the
two above names) each being able to access 5 "drives". (Please note that you must never access a
particular partition with two different drivers as the results could be fatal. You cannot predict
where you will end up and what will happen. You could very easily damage your files on a
partition). Use some logic to do this, keeping in mind you are simply treating the partitions as
'individual floppy drives'.
You could reduce your cylinder size to 20 for just under 1 Meg storage per drive, which would give
you a sector cluster size of 16 instead of 20. I will not go into all the details here, I just wanted
to show you that it can be done.
SASIXUxx.ABS
SASIXUxx.ABS is a partition program identical to its CP/M counterpart. It allows you to change any
and all partitions and parameters under HDOS just like the SASIXUxx.COM did under CP/M. It does
not matter whether you use the CP/M or HDOS version, both will achieve the same end result.
Again, be certain you back up your unit before using any partiti oning utility, this one included.
Now we'll look at the last of the HDOS software, the actual device driver DKSASXV3.DVD.