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Path: utzoo!mnetor!seismo!think!cirl!das
From: das@cirl.UUCP (Dave Steffens)
Newsgroups: net.unix-wizards
Subject: Re: Re: Need help with modems under Ultrix
Message-ID: <280@cirl.UUCP>
Date: Sun, 10-Aug-86 12:50:52 EDT
Article-I.D.: cirl.280
Posted: Sun Aug 10 12:50:52 1986
Date-Received: Tue, 12-Aug-86 12:42:43 EDT
References: <1034@decuac.DEC.COM>
Organization: Cochlear Implant Res. Lab, Boston, MA
Lines: 39

In article <1034@decuac.DEC.COM>, Fred Avolio writes:
> [ I have written to him about this, but thought that others might have
> the same questions... ]
> 
> In article <3097@ncsu.UUCP>, mark@ncsu.UUCP (Mark Lanzo) writes:
>> The problem:
>>     Nothing I or anyone at our site has been able to do has worked to
>> convince the system to handle the line properly.  We had no problems 
>> before when we were running under V1.1 of the OS, but apparently V1.2
>> handles terminals in a significantly different fashion.
> 
> Yes indeed.  Assuming the /etc/ttys file is set up correctly (and you
> should check this) you still need to tell the operating system to use
> modem control on the individual line(s) through the flag field in the
> config file for the system.
> -- 
> Fred @ DEC Ultrix Applications Center
> INET: avolio@decuac.DEC.COM				* Fight the Fight *
> UUCP: {decvax,seismo,cbosgd}!decuac!avolio	       * Rescue the Unborn *

Uh, yeah.  I wrote to Mike, too, because I stumbled over this same problem
in Ultrix 1.1 -- how Mike managed to avoid it in 1.1 and tripped over it in 1.2
is a mystery to me.  The only reason I figured it out was because I happened to
have access to 4.2bsd sysgen literature which is **not** supplied with Ultrix.
To my knowledge, the only other place this is mentioned in Ultrix documentation
is an obscure reference in DHU(4).  Perhaps the information on how to setup
Ultrix for modem control should be a little more available to non-wizards?

And even given this information, you must know **how** to do a sysgen.
Why not just provide a shell script which uses adb to mung the flagword
in the bootable system image /vmunix?  Then the administrator wouldn't need
to know anything about sysgens and flagwords.  This would certainly be in
keeping with the other Ultrix "make it simple" installation scripts.
For an even more general method, why not do away with the flagword altogether
and specify modem control in /etc/ttys, al la 2.9bsd?
-- 
{harvard,mit-eddie,think}!eplunix!earvax!das	David Allan Steffens
243 Charles St., Boston, MA 02114		Eaton-Peabody Laboratory
(617) 523-7900 x2748				Mass. Eye & Ear Infirmary