5 Aug
2016
5 Aug
'16
4:42 p.m.
Progress on getting the MVII up and running:
I ordered the SCSI2SD adapter and it has come in, the plan is to use it
as the system disk on the MVII.
The hobbyist VMS PAKS have arrived and I was able to download the VMS
7.3 iso, not sure what I can do with it since I think it must be burned
to a 512 byte sector CD.
I asked if the PAKS were good for older versions of VMS, like 5.5, and
was told yes they were. We'll see about that.
The Hobbyist VMS CD I had for VMS 7.2 was found and I was able to get
the old Toshiba CD drive to work on the MV 4000 using a CQD 223A. How
can I create an image of these CD's on the VAX 4000 that I could use in
an emulator?
I wasn't able to get the UC07 to see the CDROM because of a bad SCSI
cable, I had hoped to format the SCSI2SD using the UC07.
Is it possible to use the SCSI2SD on a microPDP-11 under RT-11? I ask
because of the disk size limit under RT-11.
Doug
5 Aug
5 Aug
4:48 p.m.
On Aug 5, 2016, at 1:42 PM, Douglas Taylor
<dj.taylor4 at comcast.net> wrote:
Progress on getting the MVII up and running:
I ordered the SCSI2SD adapter and it has come in, the plan is to use it as the system
disk on the MVII.
The hobbyist VMS PAKS have arrived and I was able to download the VMS 7.3 iso, not sure
what I can do with it since I think it must be burned to a 512 byte sector CD.
Burn it to a CD. Shouldn't be anything complex here.
I asked if the PAKS were good for older versions of VMS, like 5.5, and was told yes they
were. We'll see about that.
The Hobbyist VMS CD I had for VMS 7.2 was found and I was able to get the old Toshiba CD
drive to work on the MV 4000 using a CQD 223A. How can I create an image of these
CD's on the VAX 4000 that I could use in an emulator?
I wasn't able to get the UC07 to see the CDROM because of a bad SCSI cable, I had
hoped to format the SCSI2SD using the UC07
Keep in mind that the SCSI2SD can pretend to be a CD-ROM, and can emulate up to 4 SCSI
devices at one go. No need to futz with a real drive if you don't want to...
Josh
Is it possible to use the SCSI2SD on a microPDP-11 under RT-11? I ask because of the disk
size limit under RT-11.
Doug
6:18 p.m.
On Aug 5, 2016, at 3:48 PM, derschjo at gmail.com wrote:
Yes - I have used the same PAK on 5.5 and 7.3.
Yes. It works well with the later versions of RT11 V5.5-5.7. There are DU Handlers
(MSCP) that allow a large disk to be partitioned (in the handler) into multiple drives
I?ve used up to 7 in RT and 20+ in TSX+ drives at the same time. Each drive is still
limited to 32Mb per partition, but you can manage up to 255 partitions (~8GB).
Jerry
On Aug 5, 2016, at 1:42 PM, Douglas Taylor
<dj.taylor4 at comcast.net> wrote:
Progress on getting the MVII up and running:
I ordered the SCSI2SD adapter and it has come in, the plan is to use it as the system
disk on the MVII.
The hobbyist VMS PAKS have arrived and I was able to download the VMS 7.3 iso, not sure
what I can do with it since I think it must be burned to a 512 byte sector CD.
Burn it to a CD. Shouldn't be anything complex here.
>
> I asked if the PAKS were good for older versions of VMS, like 5.5, and was told yes
they were. We'll see about that.
The Hobbyist VMS CD I had for VMS 7.2 was found and I was able to get the old Toshiba CD
drive to work on the MV 4000 using a CQD 223A. How can I create an image of these
CD's on the VAX 4000 that I could use in an emulator?
I wasn't able to get the UC07 to see the CDROM because of a bad SCSI cable, I had
hoped to format the SCSI2SD using the UC07
Keep in mind that the SCSI2SD can pretend to be a CD-ROM, and can emulate up to 4 SCSI
devices at one go. No need to futz with a real drive if you don't want to...
>
> Is it possible to use the SCSI2SD on a microPDP-11 under RT-11? I ask because of the
disk size limit under RT-11.? 
11:24 p.m.
On 8/5/2016 6:18 PM, Jerry Weiss wrote:
On Aug 5, 2016, at 3:48 PM, derschjo at gmail.com
wrote:
Yes - I have used the same PAK on 5.5 and
7.3.
Yes. It works well with the later versions of RT11
V5.5-5.7. There are DU Handlers (MSCP) that allow a large disk to be partitioned (in
the handler) into multiple drives I?ve used up to 7 in RT and 20+ in TSX+ drives at the
same time. Each drive is still limited to 32Mb per partition, but you can manage up to
255 partitions (~8GB).
Jerry
Jerry;
I am starting to read about the SCSI2SD and it will be very useful to
have it emulate multiple drives, I am thinking of one hard disk and up
to 3 CDROMs, one each for 5.5, 7.2 and 7.3. If I want to use one of the
SCSI id's for an image of a VMS installation CD do I make its size
exactly match the size of the iso image (534MB for 7.3)?
My problem is that the only computer with a SCSI interface in my
possession is the VAX (and microPDP11), so I will be forced to install
On Aug 5,
2016, at 1:42 PM, Douglas Taylor <dj.taylor4 at comcast.net> wrote:
Progress on getting the MVII up and running:
I ordered the SCSI2SD adapter and it has come in, the plan is to use it as the system
disk on the MVII.
The hobbyist VMS PAKS have arrived and I was able to download the VMS 7.3 iso, not sure
what I can do with it since I think it must be burned to a 512 byte sector CD.
Burn
it to a CD. Shouldn't be anything complex here.
> I asked if the PAKS were good for older versions of VMS, like 5.5, and was told yes
they were. We'll see about that. The
Hobbyist VMS CD I had for VMS 7.2 was found and I was able to get the old Toshiba CD drive
to work on the MV 4000 using a CQD 223A. How can I create an image of these CD's on
the VAX 4000 that I could use in an emulator?
I wasn't able to get the UC07 to see the CDROM because of a bad SCSI cable, I had
hoped to format the SCSI2SD using the UC07
Keep in mind that the SCSI2SD can
pretend to be a CD-ROM, and can emulate up to 4 SCSI devices at one go. No need to futz
with a real drive if you don't want to...
> Is it possible to use the SCSI2SD on a microPDP-11 under RT-11? I ask because of the
disk size limit under RT-11.? from an actual CD. This isn't that bad though, I
installed 7.2 about 12
years ago on the VAX 4000 that I have.
About RT-11, I had 5.4 and it allowed you to use multiple 32MB
partitions, when I finish with the VAX I will start on the microPDP11.
I was just curious if you could use the SCSI2SD adapter with RT-11, it
looks like I can, thanks.
I am at a loss to figure out how to get data onto the SD card partitions
outside of VMS, will simh recognize the partitions?
Doug
6 Aug
6 Aug
12:05 a.m.
On Aug 5, 2016, at 10:24 PM, Douglas Taylor
<dj.taylor4 at verizon.net> wrote:
On 8/5/2016 6:18 PM, Jerry Weiss wrote:
I haven?t used the SCSI2SD to emulate a CDROM, so I gladly defer to others to who have
done it. Your basic approach makes sense to me. Just write the image directly to the
blocks on a SD that match the starting offset for the partition you use in SCSI2SD and
leave the blocksize as 512. I used DD on Linux or OSX and its easily to pipe images on
and off the SD. For Windows YMMV.
In my case I used a OSX to burn the VMS 7.3 iso to a CDROM. Then I booted it on a
Microvax 3100 and built a system. From there I netbooted the MicroVax II. Since then I
also was have moved and booted the same SD images on the Microvax 3100, MV II and MV III
using a UC07 (no SD partitions). If you can attach the SCSI2CD to the your VAX4000
Qbus, you can try the same. I don?t think the KFQSA will work however.
On Aug 5, 2016, at 3:48 PM, derschjo at gmail.com
wrote:
Yes - I have used the same PAK on 5.5 and
7.3.
Yes. It works well with the later versions of RT11
V5.5-5.7. There are DU Handlers (MSCP) that allow a large disk to be partitioned (in
the handler) into multiple drives I?ve used up to 7 in RT and 20+ in TSX+ drives at the
same time. Each drive is still limited to 32Mb per partition, but you can manage up to
255 partitions (~8GB).
Jerry;
I am starting to read about the SCSI2SD and it will be very useful to have it emulate
multiple drives, I am thinking of one hard disk and up to 3 CDROMs, one each for 5.5, 7.2
and 7.3. If I want to use one of the SCSI id's for an image of a VMS installation CD
do I make its size exactly match the size of the iso image (534MB for 7.3)?
On Aug 5,
2016, at 1:42 PM, Douglas Taylor <dj.taylor4 at comcast.net> wrote:
Progress on getting the MVII up and running:
I ordered the SCSI2SD adapter and it has come in, the plan is to use it as the system
disk on the MVII.
The hobbyist VMS PAKS have arrived and I was able to download the VMS 7.3 iso, not sure
what I can do with it since I think it must be burned to a 512 byte sector CD.
Burn
it to a CD. Shouldn't be anything complex here.
> I asked if the PAKS were good for older versions of VMS, like 5.5, and was told yes
they were. We'll see about that. The
Hobbyist VMS CD I had for VMS 7.2 was found and I was able to get the old Toshiba CD drive
to work on the MV 4000 using a CQD 223A. How can I create an image of these CD's on
the VAX 4000 that I could use in an emulator?
I wasn't able to get the UC07 to see the CDROM because of a bad SCSI cable, I had
hoped to format the SCSI2SD using the UC07
Keep in mind that the SCSI2SD can
pretend to be a CD-ROM, and can emulate up to 4 SCSI devices at one go. No need to futz
with a real drive if you don't want to...
> Is it possible to use the SCSI2SD on a microPDP-11 under RT-11? I ask because of the
disk size limit under RT-11.? My problem is that the only computer with a SCSI
interface in my possession is the VAX (and microPDP11), so I will be forced to install
from an actual CD. This isn't that bad though, I installed 7.2 about 12 years ago on
the VAX 4000 that I have.
About RT-11, I had 5.4 and it allowed you to use multiple 32MB partitions, when I finish
with the VAX I will start on the microPDP11. I was just curious if you could use the
SCSI2SD adapter with RT-11, it looks like I can, thanks.
SCSI2SD works fine with RT11 and my UC07.
I am at a loss to figure out how to get data onto the
SD card partitions outside of VMS, will simh recognize the partitions?
You can probably install cygwin on your Windows machine It has dd and other byte banging
tools to facilitate the transfer. Alternately boot a Linux CDROM. The SD card itself
knows not of the partitions. This geometry is stored in the SCSI2SD.
Jerry
5 Aug
5 Aug
10:44 p.m.
On 8/5/2016 4:48 PM, derschjo at gmail.com wrote:
I was able to expand the
compressed file using 7-Zip and generate the
iso image. However, when I tried to burn the iso to a CD Win7 reported
that 'The selected disk image file is not valid'. Not sure what all
that means, but anyway VMS can't handle a CD with 2048 block size so I
stopped fooling around with that.
Yes, I believe that is the way to proceed. Let the SCSI2SD be a couple
of drives, one for installing the software onto and another to contain
the installation CD image. At this point it is kind of a 'chicken and
the egg' thing for me, the only scsi interface I have is on the VAX. I
don't have one on the PC where the VMS image is, so I'm perplexed as to
how I get the software installation CD onto the SCSI2SD SD card.
On Aug 5, 2016, at 1:42 PM, Douglas Taylor
<dj.taylor4 at comcast.net> wrote:
Progress on getting the MVII up and running:
I ordered the SCSI2SD adapter and it has come in, the plan is to use it as the system
disk on the MVII.
The hobbyist VMS PAKS have arrived and I was able to download the VMS 7.3 iso, not sure
what I can do with it since I think it must be burned to a 512 byte sector CD.
Burn
it to a CD. Shouldn't be anything complex here. I asked if the PAKS were good for older versions
of VMS, like 5.5, and was told yes they were. We'll see about that.
The Hobbyist VMS CD I had for VMS 7.2 was found and I was able to get the old Toshiba CD
drive to work on the MV 4000 using a CQD 223A. How can I create an image of these
CD's on the VAX 4000 that I could use in an emulator?
I wasn't able to get the UC07 to see the CDROM because of a bad SCSI cable, I had
hoped to format the SCSI2SD using the UC07
Keep in mind that the SCSI2SD can
pretend to be a CD-ROM, and can emulate up to 4 SCSI devices at one go. No need to futz
with a real drive if you don't want to...
Josh
> Is it possible to use the SCSI2SD on a microPDP-11 under RT-11? I ask because of the
disk size limit under RT-11.
>
> Doug
>
11:40 p.m.
On Fri, Aug 5, 2016 at 7:44 PM, Douglas Taylor <dj.taylor4 at comcast.net>
wrote:
You can do it pretty easily if you have an SD card reader in your PC --
what I'd do is DD the image onto the SD card starting at block zero (there
are numerous dd-like tools for windows for doing this sort of thing). Then
configure the SCSI2SD to present the first N sectors of the SD card (where
N is the number of 512-byte sectors in the CD image) as a CD-ROM, and use
the rest of the SD card for disks.
- Josh
On 8/5/2016 4:48 PM, derschjo at gmail.com wrote:
The built-in ISO burning support in Win7 is garbage, use something like
ImgBurn or the like to do the job.
On Aug 5, 2016, at 1:42 PM, Douglas Taylor <dj.taylor4 at comcast.net>
I was able to expand the compressed file using 7-Zip and generate the iso
image. However, when I tried to burn the iso to a CD Win7 reported that
'The selected disk image file is not valid'. Not sure what all that means,
but anyway VMS can't handle a CD with 2048 block size so I stopped fooling
around with that. wrote:
Progress on getting the MVII up and running:
I ordered the SCSI2SD adapter and it has come in, the plan is to use it
as the system disk on the MVII.
The hobbyist VMS PAKS have arrived and I was able to download the VMS
7.3 iso, not sure what I can do with it since I think it must be burned to
a 512 byte sector CD.
Burn it to a CD. Shouldn't be anything complex here.
I asked if the PAKS were good for older versions
of VMS, like 5.5, and
Yes, I believe that is the way to proceed. Let the SCSI2SD be a couple of
drives, one for installing the software onto and another to contain the
installation CD image. At this point it is kind of a 'chicken and the egg'
thing for me, the only scsi interface I have is on the VAX. I don't have
one on the PC where the VMS image is, so I'm perplexed as to how I get the
software installation CD onto the SCSI2SD SD card. was told yes they were. We'll see about
that.
The Hobbyist VMS CD I had for VMS 7.2 was found and I was able to get
the old Toshiba CD drive to work on the MV 4000 using a CQD 223A. How can
I create an image of these CD's on the VAX 4000 that I could use in an
emulator?
I wasn't able to get the UC07 to see the CDROM because of a bad SCSI
cable, I had hoped to format the SCSI2SD using the UC07
Keep in mind that the SCSI2SD can pretend to be a CD-ROM, and can emulate
up to 4 SCSI devices at one go. No need to futz with a real drive if you
don't want to...
Josh
Is it possible to use the SCSI2SD on a
microPDP-11 under RT-11? I ask
> because of the disk size limit under RT-11.
>
> Doug
>
>
2907
days inactive
2908
days old
7 comments
5 participants
participants (5)
-
dave.g4ugm＠gmail.com -
derschjo＠gmail.com -
dj.taylor4＠comcast.net -
dj.taylor4＠verizon.net -
jsw＠ieee.org