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From: trevc@moosehead.mips.com (Trevor Cotton)
Newsgroups: comp.sys.mips
Subject: Re: uugetty and /usr/spool/locks (another try)
Message-ID: <44917@mips.mips.COM>
Date: 16 Jan 91 01:21:56 GMT
References: <9101150643.AA26295@fernwood.mpk.ca.us>
Sender: news@mips.COM
Reply-To: trevc@mips.com
Organization: Mips Computer Systems Inc., Sunnyvale, CA
Lines: 35

In article <9101150643.AA26295@fernwood.mpk.ca.us>,
jns@fernwood.mpk.ca.US (Jerry Sweet) writes:
> 
> I made another attempt to make uugetty do its step-aside thing, using
> a different modem, a Telebit T1600 this time.  Using the RS232
> breakout box, I verified that the behavior of DCD is correct: the
> modem only turns on DCD when there is actually carrier present.
> Unfortunately, uugetty is still exhibiting the same behavior: it won't
> step aside either for kermit or for tip.  Tip reports "all ports
> busy".  Kermit just sits there when you try to "set line".  When I
> disable uugetty on the port, kermit and tip are able to get through
> with no trouble.  Uugetty otherwise exhibits exemplary standard getty
> behavior vis a vis login when it's enabled.
> 
> If another experiment is suggested that might make uugetty do the
> right thing, I'll give it a try.  (I haven't yet tried using the
> RISC/os 4.30 version of uugetty, as Laurence Yaffe suggested in
> his response to me in comp.sys.mips.)
> 
> Here's the setup (some recap):
> 

Create the device /dev/ttydm0 with major number 32 and minor number 128
and use that instead. The serial line drivers are all written to use modem
control by default on lines with minor number > 128. This is how I am set up
here ( I use a Telebit T2500 ) and uugetty and cu co-exist happily.

Note that I do have a problem with kermit; 
kermit creates its lock file in /usr/spool/uucp rather than /usr/spool/locks, 
which is where cu and uugetty create their lock files. The other problem, 
as you pointed out, is that kermit needs to run as uucp to be able to access 
the line as uugetty and cu make uucp the owner.
I have submitted a (Mips) bug report for kermit .

--trevc--