Serial configs on sparc64

[Garance A Drosihn]

At 1:41 PM -0700 11/23/04, Scott Long wrote:
>Garance A Drosehn wrote:
>>At 10:12 PM -0500 11/21/04, Garance A Drosihn wrote:
>>
>>>After the tty-renaming in the 6.x-current branch, should /etc/ttys
>>>be changed something like:
>>>
>>>--- etc/ttys.orig       Sun Nov 21 21:56:12 2004
>>>+++ etc/ttys    Sun Nov 21 21:46:41 2004
>>>@@ -33,8 +33,8 @@
>>>  console        none                            unknown off secure
>>>  #
>>>  screen "/usr/libexec/getty Pc"         cons25  on  secure
>>>-ttya   "/usr/libexec/getty 3wire.9600" cons25  on  secure
>>>-ttyb   "/usr/libexec/getty 3wire.9600" cons25  off secure
>>>+ttyz0  "/usr/libexec/getty 3wire.9600" cons25  on  secure
>>>+ttyz1  "/usr/libexec/getty 3wire.9600" cons25  off secure
>>>  #
>>>  #ttyv0 "/usr/libexec/getty Pc"         cons25  on  secure
>>>  # Virtual terminals
>>>
>>>
>>>Making this change got rid of an error message that I had been
>>>getting about ttya at system startup, and it also lets me log
>>>in via the serial port once the system is up.
>>
>>Seeing the lack of any objections, I'll try to commit this change
>>to 6.x-current sometime soon.  Probably over the long weekend.
>
>Are you using the zs or the uart driver?  Now that Marcel fixed
>uart to handle the zs hardware in the U2 correctly, we might be able
>to think about retiring the zs driver entirely.

I un-commented the uart line in my kernel config, and changed the
lines in /etc/tty back to what they had been.  I booted into
single-user with the new kernel (planning to 'make installworld'),
and I had no serial console.  Not sure if it hung, or if it just
wasn't listening to me.  Given how long it takes me to test
anything on this machine, I decided that I would just skip this
idea for now.  I re-commented out the uart line in the kernel, put
back my changes to /etc/tty, and that's working fine for me.

I don't have enough background at the kernel/device-driver level to
know what I'm doing, so I'll wait until someone who knows more will
figure it out.  I should also note that I was getting constantly
interrupted with minor-emergency phone calls while doing this, so
maybe I just missed something simple and this all works quite fine.

I do not plan on committing my change to /etc/ttys, even though it is
an improvement for my situation, in case someone else is in the middle
of making a much better change.

-- 
Garance Alistair Drosehn            =   gad at gilead.netel.rpi.edu
Senior Systems Programmer           or  gad at freebsd.org
Rensselaer Polytechnic Institute    or  drosih at rpi.edu