OS-9 login / shutdown
julesrichardsonuk at yahoo.co.uk
Wed Nov 23 16:18:39 CST 2005
OS-9 Al wrote:
>> I've just come across my first OS9 system
> Power off at will!
Great :) I've since found that the floppy drive in the system was hosed, but
the boot floppy's still good, so I've now managed to boot from floppy only,
which is a start.
Unfortunately accesses to the hard disk are currently failing; my assumption
is that the board used to store hard disk geometry in NVRAM and the NVRAM
battery's likely long since given up. At this moment I have no idea how to
reprogram it as that was almost certainly done with a utility outside of the
OS-9 boot floppy that I have... (remember that this system uses an ST506 disk
via a bridge board, so it's non-intelligent and needs its drive geometry
Still, it is at the stage of being an operational OS-9 system now - I just
don't know what's lurking on that hard disk. Hopefully it was all non-exciting
>> On the plus side, the interface between host and disk unit is SASI, so
>> a chance I can do a raw backup of the drive via a modern system. On
>> the minus
>> side, the physical drive is an ST506 type via an OMTI bridge board, so
>> I can't
>> easily go from raw backup to working system without proper low-level
>> utils (which I don't have, although I'm still sorting through floppies
>> came in the same haul)
> You can do a web search and find disk utilities for PC and maybe Linux
> (and maybe Mac) that will read/write to an OS-9 disk image.
Ah, thanks - that's worth bearing in mind if it turns out that I have no way
of getting the machine's hard drive working with the system itself; it'd be
nice to see what's on there at least.
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