On Wed, Oct 18, 2023 at 10:21 AM Henry Bent via cctalk
<cctalk(a)classiccmp.org> wrote:
Interesting. My Dilog DQ614 (ST506 emulating RL02s)
specifically does not
work with Ultrix, but does work with 2.xBSD and v7, so I would not
necessarily assume that a third-party board was going to work with
Ultrix-11's drivers.
I have personally installed 2.9BSD on an 11/24 with RL11 and RL02 so I
_know_ that works (and I would expect the DQ614 to work there too). I
have a DQ614 but the Rodime drive that came with it was toast and I
only recently got the RT11 utility to fiddle drives so I haven't ever
tried to use mine. I may end up tossing an ST225 or ST241 on my DQ614
when I get around to trying it.
I do not know what drives Ultrix-11 supports but it wouldn't be
shocking to find that you can't use an RL02 as the root install
device. An RL02 was only big enough for the base install of 2.9BSD
and not big enough for base+sources so I was never able to rebuild my
kernel (it all worked fine on an RK07 at work).
In the past, I never did anything with 2.11BSD or Ultrix-11 because I
didn't have a new enough setup (most of my gear came from the 70s and
early 80s - no J-11 anywhere until recently).
As mentioned, if it's a well-implemented MSCP SCSI controller (UC07,
CQD220...), it should "just work" on any system there are MSCP drivers
for.
Cheers,
-ethan