Ok, thanks to the cable Chris Bartlett sent me (thanks, Chris!) I was
finally able to bring up my Bernoulli box.
It seems the first drive system I tried has a problem. The driver does
not see the drive when it loads. The other unit is identified and comes
up just fine.
Now the problem is reading or formatting disks. I can't get a directory
listing or anything. I keep getting sector errors. Using the RCD utility
to perform a surface scan, I find that each disk I'm trying basically
fails at the same point. Sector #0 is always bad, then the rest of the
disk up to cylinder 195 or so verifies fine, and then the errors start
again. This is across the 10 or so disks I've tried.
I've tried cleaning the heads as best I can. I have a disk cleaning cart
but the pads were gone, so I replaced them with new pads (the fuzzy side
of some velcro patches) and ran that through the drive. It would be
otherwise very difficult to get at the head by disassembling the drive (I
tried) and besides, if the heads were still dirty they would not be able
to read any part of the disk, right?
Any pointers here? It seems odd that, with each disk, the first sector
would be bad but then the rest of the disk would be good, only to fail
again at a certain point. Was there ever a 20MB Bernoulli drive? If so,
my theory is that maybe these were written on a 20MB drive and I'm trying
to read them with a 10MB drive, and there's a format incompatibility.
Somewhat frustrating...
--
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
[ Old computing resources for business || Buy/Sell/Trade Vintage Computers ]
[ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]
Received on Thu Feb 19 2004 - 19:38:17 GMT