29 Oct
2023
29 Oct
'23
9:59 a.m.
Hi all,
I tried several ways to get a working SCSI image to be successfully boote
on a ZULU 2024 SCSI Emulator.
1. I do have an Image of an RZ25-E drive containing RSX11M Plus, which is
booting properly. This is a raw dd based disc image of a SCSI drive.
2. I got a disc mage by Jacob, which is booting using simh, but not using
the ZULU on a physical 11/73
3. I created a fresh installation of Ultrix 11 using simh 3.9.x creating a
RD54 image which won't boot on the ZULU an the physical 11/73
4.. I created a fresh installation of Ultrix 11 using simh 3.9.x directly
into a physical SCSI drive partition, created an image via dd which doesn't
want to boot on the ZULU. Simh is booting properly from a dd image of this
partition.
5. Simh is telling me in general using a (virtual) RQDX3 controller. Maybe
the images created won't boot because of being created by the virtual RQDX
3 controller?
How to create a raw disc w/o any controller specific format - simply a
plain Ultrix 11 image as a target for a SCSI drive to be booted either from
the physical, or from a virtual (ZULU).
Best
Andreas
30 Oct
30 Oct
8:43 a.m.
On Sun, 29 Oct 2023 at 13:00, hupfadekroua via cctalk <cctalk(a)classiccmp.org>
wrote:
Hi all,
I tried several ways to get a working SCSI image to be successfully boote
on a ZULU 2024 SCSI Emulator.
1. I do have an Image of an RZ25-E drive containing RSX11M Plus, which is
booting properly. This is a raw dd based disc image of a SCSI drive.
2. I got a disc mage by Jacob, which is booting using simh, but not using
the ZULU on a physical 11/73
3. I created a fresh installation of Ultrix 11 using simh 3.9.x creating a
RD54 image which won't boot on the ZULU an the physical 11/73
4.. I created a fresh installation of Ultrix 11 using simh 3.9.x directly
into a physical SCSI drive partition, created an image via dd which doesn't
want to boot on the ZULU. Simh is booting properly from a dd image of this
partition.
5. Simh is telling me in general using a (virtual) RQDX3 controller. Maybe
the images created won't boot because of being created by the virtual RQDX
3 controller?
How to create a raw disc w/o any controller specific format - simply a
plain Ultrix 11 image as a target for a SCSI drive to be booted either from
the physical, or from a virtual (ZULU).
Newer versions of SIMH (v4, I'm not sure exactly when support was added)
allow you to "set rq type=RQDX1" which in the case of the RD54 might make a
difference, and the Ultrix-11 ra driver does treat the controllers slightly
differently. I'm not sure that it should actually make a difference, but
that would be the first thing that I would try.
How does the controller identify itself when booting RSX-11? That could
give some hints as to what might be happening with Ultrix.
You could also try 2.11BSD, or even 2.9BSD, to see if those are able to
boot and see how they identify the controller.
-Henry
12:36 p.m.
On Mon, 30 Oct 2023 at 11:43, Henry Bent <henry.r.bent(a)gmail.com> wrote:
On Sun, 29 Oct 2023 at 13:00, hupfadekroua via cctalk
<
cctalk(a)classiccmp.org> wrote:
Replying to myself here...
I took a deeper dive through the Dilog SQ706A controller manual (the SCSI
controller you're using) and it looks like it presents itself as a KDA50,
though that's only an inference based on the fact that the manual suggests
that you can run the KDA50 diagnostics on the controller. Ultrix-11
definitely treats this differently than the RQDX series, so perhaps that's
the issue here. I went ahead and set up an Ultrix install on an RA81/KDA50
in SIMH that uses the disk sensibly since I wanted that for my own use,
contact me off-list and I can send you the image.
-Henry
Hi all,
I tried several ways to get a working SCSI image to be successfully boote
on a ZULU 2024 SCSI Emulator.
1. I do have an Image of an RZ25-E drive containing RSX11M Plus, which is
booting properly. This is a raw dd based disc image of a SCSI drive.
2. I got a disc mage by Jacob, which is booting using simh, but not using
the ZULU on a physical 11/73
3. I created a fresh installation of Ultrix 11 using simh 3.9.x creating a
RD54 image which won't boot on the ZULU an the physical 11/73
4.. I created a fresh installation of Ultrix 11 using simh 3.9.x directly
into a physical SCSI drive partition, created an image via dd which
doesn't
want to boot on the ZULU. Simh is booting properly from a dd image of this
partition.
5. Simh is telling me in general using a (virtual) RQDX3 controller. Maybe
the images created won't boot because of being created by the virtual RQDX
3 controller?
How to create a raw disc w/o any controller specific format - simply a
plain Ultrix 11 image as a target for a SCSI drive to be booted either
from
the physical, or from a virtual (ZULU).
Newer versions of SIMH (v4, I'm not sure exactly when support was added)
allow you to "set rq type=RQDX1" which in the case of the RD54 might make a
difference, and the Ultrix-11 ra driver does treat the controllers slightly
differently. I'm not sure that it should actually make a difference, but
that would be the first thing that I would try.
How does the controller identify itself when booting RSX-11? That could
give some hints as to what might be happening with Ultrix.
You could also try 2.11BSD, or even 2.9BSD, to see if those are able to
boot and see how they identify the controller.
191
days inactive
192
days old
2 comments
2 participants
participants (2)
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Henry Bent -
hupfadekroua