Subject: Re: Force serial console?
To: Henry Nelson <henry@irm.nara.kindai.ac.jp>
From: Jun-ichiro itojun Hagino <itojun@iijlab.net>
List: port-i386
Date: 06/23/2001 16:17:36
(correct me if i'm wrong)
>> like this. "rwd0" part may vary by your system configuration.
> ^^^^
>How do you verify this for a particular system? Are there only two
>choices, rwd0a and rsd0a?
/etc/fstab and dmesg(8) output should help.
>> # /usr/mdec/installboot /usr/mdec/biosboot_com0.sym /dev/rwd0a
>>
>> also don't forget to update /etc/ttys correctly (you will want a getty
>> on "console"). ^^^^^^^^^
>What is "correct?" Please give a concrete example if it is not too much
>trouble. For example, is the following satisfactory?
> "console "/usr/libexec/getty std.38400" on secure"
yes, it should be okay.
>I'm using "tty00" and have "console" turned off, and it works. Is this
>because I have compiled serial support into the kernel and am not using
>the bootloader? (Or am I wrong, and just lucky?)
iirc, "console" is better (works even when you switch to VGA).
>For sparcs, 38400 seems to be the upper limit. How about i386, can we go
>ahead and put a baud rate of 115200? If we put 115200, does it mean we have
>to compile a custom bootloader, or does "biosboot_com0.sym" automagically
>determine the baud rate and all that matters is "/etc/ttys"?
dunno. never tried any other speeds than default (9600).
>Do you need to turn off ttyE0 (ttyv0), all ttyE?'s (ttyv?'s), or leave them
>on by default? (My working system has all of them turned off, as follows.)
> "ttyE0 "/usr/libexec/getty Pc" vt220 off secure"
>or on the PC98,
> "ttyv0 "/usr/libexec/getty Pc" vsc30 off secure"
up to you. if you still want to use wscons, you need ttyE*. otherwise,
you may want to turn it off (for less process/memory usage),
or you may want to keep it (for future use of VGA/wscons).
now, someone please suggest a fragment for FAQ :-)
(we need a fact-check too).
itojun