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Date:      Mon, 09 Oct 2000 12:52:47 -0600
From:      Warner Losh <imp@village.org>
To:        matthew zeier <matthew@intelenet.net>
Cc:        freebsd-stable@FreeBSD.ORG
Subject:   Re: serial console - how-to ? 
Message-ID:  <200010091852.MAA13778@harmony.village.org>
In-Reply-To: Your message of "Mon, 09 Oct 2000 10:12:42 PDT." <20001009101242.D29388@intelenet.net> 
References:  <20001009101242.D29388@intelenet.net>  

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In message <20001009101242.D29388@intelenet.net> matthew zeier writes:
: In searching the mailing lists, I seem to get different methods to use
: COM1 for console.
: 
: What's needed to get a GENERIC kernel to use COM1 for all console I/O ?
: Do I just add "-h" to /boot.config (that file doesn't exist on 4.1.1) ?
: Or do I need to rebuild my kernel setting the flags for com1 to 0x20?
: Do I need to do anything to /etc/ttys ?

The easiest way is to add -h to your /boot.config file.  You will also 
need to turn on ttyd0 in /etc/ttys.  Make sure that sio0 has flags
0x10 set (it does in GENERIC).

Flags 0x20 forces it to be the console.  This can be both good and
bad.  I usually avoid it unless I have some reason to do it.

Things get complicated if you want boot0 to be serial, or a faster
console speed than 9600 baud.

Warner


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