Re: [pups] init on V6 Unix - TUHS

6 Apr 2008

Hi, Quing Feng,

at http://www.ba-stuttgart.de/~helbig/os/v6/pdp11 you'll find a detailed 
description of the pdp-11 and its peripherals as needed for understanding design 
and implementation of V6.

and at http://www.ba-stuttgart.de/~helbig/os/script/chapt2.4 you'll find a
description of the init process.

have fun,
Wolfgang Helbig

Warren Thomas wrote:
...

On Fri, Mar 21, 2008 at 09:44:59AM +0800, Hao Qingfeng-TKNV68 wrote:
  Hello, Warren, Excuse me for my abruptness. I am 
QingFeng Hao from
 China and got your mail from the website through google searching, :-).
 I know you're expect on the operating system. Now I am researching the
 Unix V6's source code , but I met some questions, if you could spend
 some time to give some aim, I 'll apprecite it much.
 Question1: After startup, process 1 runs in the user mode and execute
 the file /etc/init actually, right? So what's the /etc/init's content?
 When was it written to the disk(combined with Unix)?
 Question2: Do you have any documents about the peripherals such as
 KL-11, PC-11? I just got a pdp11/40  and a simple hardware manual from
 the website. But they are not enough.
 Thanks a lot.
 QingFeng Hao
 Moto-SME 
Hi QingFeng, I think you should join the PUPS mailing list ( see
http://minnie.tuhs.org/mailman/listinfo/pups ), as the people on
the list should be able to answer your questions.

Q1: The source code for V6 init.c is here:
    http://minnie.tuhs.org/UnixTree/V6/usr/source/s1/init.c.html

Q2: I would browse through this area of bitsavers.org:
    http://www.bitsavers.org/pdf/dec/pdp11/

Hope this helps, and if you have other questions please e-mail them
to the PUPS mailing list, so that we can all help you out.

Cheers,
	Warren
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"Dijkstra is right, but you don't say such things!"
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