2.11BSD on PDP-11/53

From: ajp166 <ajp166_at_bellatlantic.net>
Date: Sat May 26 20:46:27 2001

-----Original Message-----
From: Jonathan Engdahl <engdahl_at_cle.ab.com>


>At boot-up, right after it tells me about how much memory I have, it
starts spitting gibberish. If I tell Kermit (my console) to switch to 7
bits even parity, I can read stuff again. It appears that the OS is
changing the line parameters. Does this make sense? If so, where do I
find the file with this config in it? I grepped for "stty" in / and /etc
but didn't find anything useful looking.


Yes, unix likes to do that. Very annoying as that is not the standard for
most DEC
configs. My V7 system also does that.

>I still can boot RT-11 from the floppy, but when I try to boot UNIX from
the hard drive it halts. I did "dd if=/mdec/rauboot of=/dev/ra0a count=1"
per Steve Schultz's instructions, but it still won't boot. I can download
Warren's boot.dd via VTserver, and type "ra(0,0,0)unix", and UNIX starts
right up, so the only problem is the boot sector. It used to boot RT-11
from hard drive fine, before I clobbered it with UNIX. The only catch is
that I have to toggle HALT and say "171000G" (there's a boot ROM on the
disk controller) because the CPU boot ROMs at 173000 are some goofy
DECserver stuff. Any ideas?


Same problem, I have to boot foreign from RT11. I'd say their boot
doesnt fit
the expected pattern for PDP-11 (microPDP-11) boot block.

>I need a way to download the rest of the UNIX tar files over the console
line. VTserver's documentation sort of stops after booting up the root
image. Where do I go from here? Is there some built-in way of using a
serial line driver like a tape, such as "tar xvf /dev/tty"?


Same problem. You need to send a binary file over a 7bit serial line.


Allison
Received on Sat May 26 2001 - 20:46:27 BST