Subject: Re: Serial port console
To: Matthew Jacob <email@example.com>
From: Ted Spradley <firstname.lastname@example.org>
Date: 08/02/1998 16:13:45
> 1) select the 'correct' console in /etc/ttys- the console pseudo-device
> doesn't seem to always do what I expect.
I think this is what finally straightened it out. I had both 'console'
and 'ttyC0' 'on' in /etc/ttys.
> 2) parity=none seems to be important.
Yeah, I was watching out for that.
> Can you get to single user (e.g., w/o boot flags set to 'a') and
> do things work well there? Other than this, it may be the h/w on
> this particular beast.
Yeah, it worked fine in single-user mode.
I should be able to change the 'off's and 'on's in /etc/ttys and 'kill -1
1' to turn getty's on and off, shouldn't I?
Since I still had 1.3.2 on another disk, I booted that up and tried it.
I never did get logged in on ttyC0, but when I moved the cable to ttyC1
that worked just fine. I could not get it to start a getty on ttyC0.
I booted up 1.3F and changed /etc/ttys to turn 'console' off and leave
ttyC0 and ttyC1 on, 'kill -1 1', and it put up a getty and let me login
on ttyC0 just fine.
It had me stumped for a while there, but it's working fine now. I guess
I should have paid attention to that comment in /etc/ttys:
# In normal operation, getty on 'console' pseudo-device is disabled, and
# enabled for the correct 'real' device (e.g. one of the serial ports).