You could boot a packaged Linux that doesn't need installation but runs directly from
the boot device. I haven't done this but I know they are out there and easy to use.
SimH complex and lots of setup? Not my experience. The documentation may be sparse in
places, as I found when configuring a PDP-10 setup, but the PDP-11 setups are well
SCSI controller, that's beside the point. I assume it looks to the PDP-11 as an MSCP
controller, right? It would have to be, else you'd have no chance of running a
standard OS. If so, you'd just tell SIMH to configure an MSCP controller with a disk
of size matching what you have.
When you said "won't write a disk image to a real RX50" do you mean an RX50
drive, or an RX50 floppy in a plain PC 5.25 inch drive? I don't know about the
former, but the latter has long worked for me. I haven't used Windows for stuff like
that in ages, and don't want to use it if I can avoid it, but my RSTSFLX 2.6 can be
build for DOS (using DJGPP). I don't have an executable of that version handy but
could probably create one. That doesn't create from images, though; it manipulates
RSTS file systems. A simple program to copy an image, along the lines of the rx50.py I
mentioned, would not be hard to make.
On Feb 22, 2022, at 5:20 PM, Rod Smallwood via cctalk
<cctalk at classiccmp.org> wrote:
I'm sure that will work. Unfortunatly dd is a linux command.
I only have windows PC's.
simH is highly complex and needs a lot of setup. ( I know - I tried - total nightmare)
It does not have support for the CMD CDD 220 SCSI controller and a RH-18A
I have a working 11/83 with a 2gig SCSI drive and RX50.(it passes the diags and boots
None of the methods suggested so far gets me an RX50 bootable OS install set.
Latest fail.. putR does not as claimed write disk images to a real RX50 under W95. (write
The SCSI25D costs $150 US in the UK.
So the simple requirement to copy an RX50 disk image (which I have) to an RX50 remains.
On 22/02/2022 19:27, Adam Thornton via cctalk wrote:
> The 11/83 question sounds like a job for SCSI2SD to me. Install a system
> with simh. dd the resulting disk image to your sd card. Hook the SCSI2SD
> up to your 11/83 and boot from the card. Copy the contents of that drive
> to your real SCSI drive. Done.
> SCSI2SD cards are not expensive and are a tremendous value for money.