21 Oct
2024
21 Oct
'24
2:27 p.m.
Hmm, not sure why yet, but I'm not able to get vtserver to work. I have
entered the bootcode manually in ODT, and I have had vtserver send it.
It looks like it loads the code and then reads one record but then hangs.
I'm wondering if my version of ODT on the CPU board needs something to be
handled differently.
Btw, the version I have found of vtserver is 2.3.1.5. I can't seem to find
anything later than that.
I am going to try PDP11GUI but I am waiting on a supported USB-RS232
adapter to arrive. The ones I have aren't supported under Windows anymore.
I should have it tomorrow.
-Peter
On Sun, Oct 20, 2024 at 9:30 AM Peter Ekstrom <epekstrom(a)gmail.com> wrote:
Aha! Ok great, I need to look closer at those then.
Thank you!
On Sun, Oct 20, 2024 at 9:23 AM cz <cz(a)alembic.crystel.com> wrote:
> use pdp11gui or vtserver. They can use ODT to upload a small program to
> the 11 which allows it to send or receive an image to a MCSP or
> RL/RX/Whatever drive. Can be slow (top speed is 9600 or 19200 baud on an
> 11/23) but it does get the job done.
>
> C
>
>
> On 10/20/2024 9:02 AM, Peter Ekstrom wrote:
> > Thank you all for the tips and pointers. I like the idea of pulling the
> > image off of my real drive, but how would I transfer it between the pdp
> > and my Linux box with Simh? It is too big for the tu58 emulator.
> >
> > On Sun, Oct 20, 2024 at 03:15 cz via cctalk <cctalk(a)classiccmp.org
> > <mailto:cctalk@classiccmp.org>> wrote:
> >
> > > If you go this route, be advised, that SIMH creates RD32 disk
> > images
> > > are not the same size as a real RD32. This will likely cause
> > problems
> > > when writing a SIMH created image to a real disk (and I'm not
> > talking
> > > about the additional issues that the trailing metadata on disk
> > images
> > > from the Pizzolato version of SIMH can cause - the problem I'm
> > > describing is caused by an incorrect disk size value in SIMH).
> >
> > True, I think you can get around this by making them disk in SIMH a
> > couple of blocks smaller.
> >
> > However there is another way. Format your real RD32 with the RQDX3
> > formatter, then once formatted suck it into a file. Then you have an
> > exact replica you can mount in SIMH and load it up.
> >
> > I did this with a 154mb Hitachi ESDI MCSP disk that went "bad"
30
> years
> > ago and would not boot. Sucked it in, booted RSX11M off a virtual
> > drive,
> > then mounted it. Turns out when I did a purge of old files I deleted
> > the
> > RSX11M.TSK file I was using to boot because I forgot to do a /SAV /
> > WB in
> > VMR to update the boot block to the new file location. Did that,
> system
> > booted, then copied it back to the "real" Hitachi disk.
> >
> > Back in operation. :-)
> >
>
>