[Coco] Back to my COCO's again
bill.gunshannon at hotmail.com
Tue Dec 11 21:01:44 EST 2018
On 12/11/18 8:09 PM, Bill Gunshannon wrote:
> On 12/11/18 5:56 PM, Gene Heskett wrote:
>> On Tuesday 11 December 2018 13:17:52 Bill Gunshannon wrote:
>>> On 12/11/18 11:34 AM, Gene Heskett wrote:
>>> That, combined with a lot of fiddling around and I am up to the next
>>> stage. :-)
>>> I have a system built for my SDC that includes the TC3 devices.
>>> However, whenever I try to access a SCSI disk I get UNIT ERROR.
>>> Other bits of data. If I have the disk turned off I get NOT READY.
>>> That makes sense.
>>> No matter which SCSI device I type (s0, s1, s2 etc) I see a flash
>>> of the disk activity light before I get the UNIT ERROR message
>>> Drive is set for Unit 0.
>> Mmm not 100% sure I've encountered that exact behaviour, so do you have
>> a /dd? And is its LSN0 properly prepared? Both for the size of the
>> drive, the offset where the os9 partition ends and the basic vdisks
>> begin? And where on the drive the os9 file you want to use to finish the
>> boot, actually starts, and its length. See the rbf.defs for which bytes
>> in LSN0 are what, its all in there.
> I think there is confusion. I have a bootable SDC image that includes
> SCSI devices. I need this to prep the SCSI disk I plan to install NitrOS9
> on. It will be one large partition with only NitrOS9 on it. I have no
> need for basic vdisks. But I have not even gotten that far. I am
> trying to do a "format /s0" and get the UNIT ERROR message. And
> any other command that attempts to access the SCSI gets the same.
> But, as I said earlier, I do see the light on the SCSI disk blink which
> means NitrOS9 is seeing the SCSI Controller and attempting to pass
> a command thru to the disk.
OK, one more data point. I just did the same thing with a
SuperIDE and a pair of Fuji Disks. I am almost done formating
the first one. So, what I did works. All I have to figure out now
is why the same thing does not work with SCSI. Going to try
a different set of disk drives. Still willing to accept any help
or advice anyone can offer.
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