1 Apr
2004
1 Apr
'04
6:16 p.m.
Well... since I am still awake....
Other than the older MFM/RLL stuff that probably will work if you can
still find the IBM drives (I guess this was inherited, as the ps/2 mod
60 based 6152s used the stock "R"s, so was that RLL?, if I remember
right, 40s or 70s I think, but I never saw anything but "E"-series ESDI
drives in the towers, in a few sizes, 70, something around 100, and
then the big 310). I think that some really old adaptec SCSI adapter
was also supported (forget the model # right now, think it was the
aha-1522 but with a less common letter?) & that was back in the days of
small SCSI drives (sub-1GB) ... of course, that SCSI card wasn't
"easily obtainable" several years ago when I thought about trying this
under AOS (someone had ported the drivers), so I don't know if anyone
is out there still doing this or what might be out there still. I know
that there was even a limitation on the ESDI drives that would work....
something about a short pulse that was odd (so you had to get a
specific version of the Maxtor 310MB drive & other ESDIs we tried
wouldn't work). Most info is in the RT FAQ
[http://www.contrib.andrew.cmu.edu/~shadow/ibmrt/faqs/], so don't trust
my bad memory, look it up... =-) ANywho... I still have some of this
gear, but are there others out there with it too?
-j
On Apr 2, 2004, at 12:53 AM, Doc Shipley wrote:
On 2 Apr 2004, R. D. Davis wrote:
Jeff Brendle (bli(a)psu.edu)
Penn State - E & M S
Quothe Doc Shipley, from writings of Thu, Apr 01,
2004 at 05:06:34PM
-0600:
Mine's running an old ISA Dell I/O card with 2x 5.25" floppy drives
and a
Seagate 280MB IDE Medalist hanging off it. I have the bookmark for the
instructions somewhere, but it boils down to needing an IDE adapter
that's
pretty brainless, and that either has no serial ports or can be turned
off,
a Seagate Medalist <2GB, a goat, and 2 plucked chickens.
I seriously did have to beat the drive repeatedly with the AOS
LL-format
utility to get it running. After it took a BSD filesystem, it then
happily accepted TLC from the VM tools.
Apparently, *only* the Medalist line supports an arcane instruction
or
sense bit or something that the ESDI adapter used and the system
firmware
wants to see. And, at this point, I'm not sure that a <2GB Medalist
qualifies as "easily obtainable". ;)
At that point I was able to power up the RT without dimming my office
lights. Three very tired E70s suck some serious amps spooling up.
I'd dearly love to snarf a mouse and a Matrox graphics adapter for
the
thing, but it's one of my pride & joy items just as it is.
Doc
I have to agree, though, that I haven't
found a lot of similarity
between
what's installed on the RT and what I run on my 43Ps.
Speaking of the RT, did anyone ever get these to work with any sort of
easily obtainable hard drives? Finding ESDI drives that would work
was
somewhat of a pain, and is why I stopped using my RT (hmmm... I wonder
if it still works?)