[pups] Problems booting PDP11/40 using vtserver

[pups] Problems booting PDP11/40 using vtserver

[Fred N. van Kempen]

.. and I'm actually still alive, although only barely... :)

I'll respond to Michael in email, and summarize here..

--f

> -----Original Message-----
> From: Warren Toomey [mailto:wkt at minnie.tuhs.org]
> Sent: maandag 28 januari 2002 23:09
> To: Michael Werner
> Cc: PUPS mailing list
> Subject: Re: [pups] Problems booting PDP11/40 using vtserver
> 
> 
> In article by Michael Werner:
> > I have my PDP11/40 connected to a MicroVAX 2 (running NetBSD/vax
> > 1.5.2) via serial line and want to boot a 2.9BSD or 2.11BSD 
> using the
> > vtserver software.
> > When I toggle in vtserver's boot code, the first file is 
> being loaded
> > correctly by the PDP. Then, following the instructions in vtserver
> > documentation, the serial line should be used as a serial 
> console - and
> > some text should appear! And this is the problem: I don't 
> get any output.
> > So, my question: Does anybody know what's going wrong here?
> > Thanks in advance - Michi
> 
> I've passed the baton of Vtserver development over to Fred van Kempen.
> However, which version of Vtserver are you using?
> 
> Cheers,
> 	Warren
> _______________________________________________
> PUPS mailing list
> PUPS at minnie.tuhs.org
> http://minnie.tuhs.org/mailman/listinfo/pups
> 


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[pups] Problems booting PDP11/40 using vtserver

[John Holden]

As I and other people mentioned in previous postings, it's likely that your
11/40 is missing memory management or EIS cpu options. In case the legend is
missing from your system box (not uncommon), I have updated my web page :-

	http://www.psych.usyd.edu.au/pdp-11/11_40.html

to show board numbers and locations

[pups] Problems booting PDP11/40 using vtserver

[John Holden]

> I have my PDP11/40 connected to a MicroVAX 2 (running NetBSD/vax
> 1.5.2) via serial line and want to boot a 2.9BSD or 2.11BSD using the
> vtserver software.

2.11BSD won't work on a PDP11/40, although 2.9BSD should. If the secondary boot
loaded, you should get a prompt '40Boot' for your processor. You haven't said
how much memory you have. Also, the 11/40 has several cpu options, and the
memory management and line time clock options are required for Unix to work.
Check that there is a register at 772340. If it is not there, then the memory
management options isn't installed.

PS

The only flow control settyings that will work is XON/XOFF. The DL style
interfaces used on all PDP11 consoles, have no useful silo, and interupts
for each character input or output. None of the kernels I know support the
dataset signals, other than some will assert DTR on open.

[pups] Problems booting PDP11/40 using vtserver

[Michael Werner]

Hi there,

I have my PDP11/40 connected to a MicroVAX 2 (running NetBSD/vax
1.5.2) via serial line and want to boot a 2.9BSD or 2.11BSD using the
vtserver software.
When I toggle in vtserver's boot code, the first file is being loaded
correctly by the PDP. Then, following the instructions in vtserver
documentation, the serial line should be used as a serial console - and
some text should appear! And this is the problem: I don't get any output.

When manually sending characters from the PDP, there is no problem.
I've set the serial line characteristics to:
Speed 2400, Character Size 8, Modem Control enabled, and RTS/CTS flow
control disabled. (I've changed these characteristics in many ways with
stty, but still no success...)
Using a break-out-box, I switched RTS/CTS and DTR/CTS flow control on and
off, forced the CTS line to be on, etc., but it still didn't work.
After successfully loading the bootloader via vtserver, the PDP's CPU goes
into an endless loop.

So, my question: Does anybody know what's going wrong here?

Thanks in advance - Michi

[pups] Problems booting PDP11/40 using vtserver

[Johnny Billquist]

On Sun, 27 Jan 2002, Michael Werner wrote:

> Hi there,
> 
> I have my PDP11/40 connected to a MicroVAX 2 (running NetBSD/vax
> 1.5.2) via serial line and want to boot a 2.9BSD or 2.11BSD using the
> vtserver software.
> When I toggle in vtserver's boot code, the first file is being loaded
> correctly by the PDP. Then, following the instructions in vtserver
> documentation, the serial line should be used as a serial console - and
> some text should appear! And this is the problem: I don't get any output.

Aha! So the first file gets transferred correctly?
Then your problem is totally withing that transferred file. My guess is
that it don't know your hardware well enough.

Does your machine have EIS? Does the code expect EIS to exist? How about
22-bit mode? I/D space?
FP perhaps?

There are a lot of potential problems...

> When manually sending characters from the PDP, there is no problem.

So? If you even manage to get the first file accress, the problem isn't
anything with your communication link.

	Johnny

Johnny Billquist                  || "I'm on a bus
                                  ||  on a psychedelic trip
email: bqt at update.uu.se           ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol

[pups] Problems booting PDP11/40 using vtserver

[Michael Werner]

Hi there,

I have my PDP11/40 connected to a MicroVAX 2 (running NetBSD/vax
1.5.2) via serial line and want to boot a 2.9BSD or 2.11BSD using the
vtserver software.
When I toggle in vtserver's boot code, the first file is being loaded
correctly by the PDP. Then, following the instructions in vtserver
documentation, the serial line should be used as a serial console - and
some text should appear! And this is the problem: I don't get any output.

When manually sending characters from the PDP, there is no problem.
I've set the serial line characteristics to:
Speed 2400, Character Size 8, Modem Control enabled, and RTS/CTS flow
control disabled. (I've changed these characteristics in many ways with
stty, but still no success...)
Using a break-out-box, I switched RTS/CTS and DTR/CTS flow control on and
off, forced the CTS line to be on, etc., but it still didn't work.
After successfully loading the bootloader via vtserver, the PDP's CPU goes
into an endless loop.

So, my question: Does anybody know what's going wrong here?

Thanks in advance - Michi

[pups] Problems booting PDP11/40 using vtserver

[Warren Toomey]

In article by Michael Werner:
> I have my PDP11/40 connected to a MicroVAX 2 (running NetBSD/vax
> 1.5.2) via serial line and want to boot a 2.9BSD or 2.11BSD using the
> vtserver software.
> When I toggle in vtserver's boot code, the first file is being loaded
> correctly by the PDP. Then, following the instructions in vtserver
> documentation, the serial line should be used as a serial console - and
> some text should appear! And this is the problem: I don't get any output.
> So, my question: Does anybody know what's going wrong here?
> Thanks in advance - Michi

I've passed the baton of Vtserver development over to Fred van Kempen.
However, which version of Vtserver are you using?

Cheers,
	Warren

[pups] Problems booting PDP11/40 using vtserver

[Johnny Billquist]

On Sat, 26 Jan 2002, Michael Werner wrote:

> Hi there,
> 
> I have my PDP11/40 connected to a MicroVAX 2 (running NetBSD/vax
> 1.5.2) via serial line and want to boot a 2.9BSD or 2.11BSD using the
> vtserver software.
> When I toggle in vtserver's boot code, the first file is being loaded
> correctly by the PDP. Then, following the instructions in vtserver
> documentation, the serial line should be used as a serial console - and
> some text should appear! And this is the problem: I don't get any output.
> 
> When manually sending characters from the PDP, there is no problem.

Okay. If it isn't a problem when you do it by hand it shouldn't be a
problem in the program either.

> I've set the serial line characteristics to:
> Speed 2400, Character Size 8, Modem Control enabled, and RTS/CTS flow
> control disabled. (I've changed these characteristics in many ways with
> stty, but still no success...)
> Using a break-out-box, I switched RTS/CTS and DTR/CTS flow control on and
> off, forced the CTS line to be on, etc., but it still didn't work.
> After successfully loading the bootloader via vtserver, the PDP's CPU goes
> into an endless loop.
> 
> So, my question: Does anybody know what's going wrong here?

Got the source code for that bootstrap?

	Johnny

Johnny Billquist                  || "I'm on a bus
                                  ||  on a psychedelic trip
email: bqt at update.uu.se           ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol

[pups] Problems booting PDP11/40 using vtserver

[Michael Werner]

Hi Johnny,

On Mon, 28 Jan 2002, Johnny Billquist wrote:
[...]
> Got the source code for that bootstrap?

Yes, I think.  It's the source code included in the vtserver2.3a-20010404
package. (Warren, this is the version I'm using.)

Greetings - Michi

[pups] Problems booting PDP11/40 using vtserver

[Kirk B. Davis]

Hmm, tricky. If you send me the 11/40, I'll have look for you :-)

Kirk

> Hi there,
> 
> I have my PDP11/40 connected to a MicroVAX 2 (running NetBSD/vax
> 1.5.2) via serial line and want to boot a 2.9BSD or 2.11BSD using 
the
> vtserver software.
> When I toggle in vtserver's boot code, the first file is being loaded
> correctly by the PDP. Then, following the instructions in vtserver
> documentation, the serial line should be used as a serial console - 
and
> some text should appear! And this is the problem: I don't get any
> output.
> 
> When manually sending characters from the PDP, there is no 
problem.
> I've set the serial line characteristics to:
> Speed 2400, Character Size 8, Modem Control enabled, and RTS/
CTS flow
> control disabled. (I've changed these characteristics in many ways 
with
> stty, but still no success...)
> Using a break-out-box, I switched RTS/CTS and DTR/CTS flow 
control on
> and off, forced the CTS line to be on, etc., but it still didn't work.
> After successfully loading the bootloader via vtserver, the PDP's 
CPU
> goes into an endless loop.
> 
> So, my question: Does anybody know what's going wrong here?
> 
> Thanks in advance - Michi
> 
> 
> _______________________________________________
> PUPS mailing list
> PUPS at minnie.tuhs.org
> http://minnie.tuhs.org/mailman/listinfo/pups