From mboxrd@z Thu Jan  1 00:00:00 1970
From: johnh@psych.usyd.edu.au (John Holden)
Date: Tue, 29 Jan 2002 10:11:46 +1100 (EST)
Subject: [pups] Problems booting PDP11/40 using vtserver
Message-ID: <200201282311.KAA03402@psychwarp.psych.usyd.edu.au>

> 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.