Date: Sat, 27 May 2006 22:12:38 -0700 From: Julian Elischer <julian@elischer.org> To: Poul-Henning Kamp <phk@phk.freebsd.dk> Cc: arch@freebsd.org Subject: Re: A sort of plan for consoles in FreeBSD Message-ID: <44793146.6070200@elischer.org> In-Reply-To: <16029.1148764704@critter.freebsd.dk> References: <16029.1148764704@critter.freebsd.dk>
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Poul-Henning Kamp wrote:
> We have four concepts of "console" in FreeBSD:
>
> 1. Whatever boot0/boot1/boot2/loader uses
> Accessed from/via native boot/firmware environment
#1 is sort of independent as it stops being used at the moment FreeBSd starts.
>
> 2. The boot/DDB/printf(9)/panic(9) console ("The low-level console").
> Polled operation since interrupts may not be working.
I always want this to be set to be the same device as #1.
(with dcons that is already not possible)
>
> 3. The tty which /sbin/init uses for single-user and /etc/rc
> Can be any tty, but convention has been "/dev/console"
I would want this to be the same device as #2
>
> 4. The /dev/console device in multi-user mode.
> Emergency output device for critical messages.
>
but, emergency messages from where? You've coverred the ones I care about above.
My main concern is that when I have a single serial console,
All these things are captured on the session logger that is monitoring it.
As long as that can happen I'm not too worried about how that happens.
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