21 Nov
2014
21 Nov
'14
12:13 p.m.
Hilariously, I actually do have an enable-34 board in my stash.. Just saw
it in the last week or so & will dig it out in next few days. So does that
single board contain the memory and everything, or is this a backplane
mod/special memory kind of setup?
I'd be eager to run Ultrix jut for the extra flavor (I've only done the
bsds on my pdp11s thus far), but one of my real desires here is to have the
machine behave itself as a pretty normal net citizen, connecting through
some sort of ethernet and running legit telnetd and ftpd. That said, I
won't be too sad if that's impossible and kludges are required, but it is
my initial hope. I guess I need to first ascertain exactly which 11/34 I
have, how much ram I can scrounge up, which addressing scheme, etc. then
move on to what I can actually do, software-wise, with the kit.
With the enable34 board, do I have some hope of getting 2.11bsd on this
one? Sounds like that'd avoid a lot of the more sporty software
modifications and let me have something that works like a "normal"
modern-ish system. But then, I do have an 11/73 I'm working on that could
run that build much more easily and appropriately.. I guess I'm up for
whatever is most historically appropriate, a good match for the hardware
and at least able to be present on a contemporary network without
intermediary kludge hardware.
thx
jake
On Fri, Nov 21, 2014 at 12:46 AM, Clem Cole <clemc(a)ccc.com> wrote:
On Thu, Nov 20, 2014 at 10:55 PM, Cory Smelosky <b4(a)gewt.net> wrote:
Well, 2.10 has SLIP,
SLIP means you still need the IP stack
(serial-line-ip)
. It
just replaces an ethernet driver with a serial port.
but it'd certainly be easier to implement a
simple userland tool to talk
to a frontend!
Actually there was tool that was almost all in userland to support
multiple sessions over single serial line between a Macs a UNIX system. My
memory is that it used Chesson's multiplexer (mpx) which is part of stock
V7 (his is pre-select system call). I wish I could remember the name of
that program. But I bet it or something like it could be repurposed pretty
quickly to talk to a frontend micro.
Biggest issue is interrupt overhead on serial ports on the 11. If this
is real HW, see you can find a real DEC DH or better yet - an Able DH/DM.
DH style interfaces will be a huge difference over DL's or DZs. DZs were
pigs on Vaxen and on an 11 a line at 19.2K continuous could kill it.
BTW: I thought of another option. It's not telnet or ftp, but if your
desire is move files back and forth without having to use a common physical
media and sneaker-net, BSD 2x should have the BerkNET code in it. That
will run on an serial line - although my previous comment about the type of
interface can matter from a performance standpoint.
Clem
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