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From: Peter da Silva <peter@bonkers.taronga.com>
Message-Id: <199504201144.GAA17992@bonkers.taronga.com>
Subject: Re: [DEVFS] your opinions sought!
To: bde@zeta.org.au (Bruce Evans)
Date: Thu, 20 Apr 1995 06:44:17 -0500 (CDT)
Cc: julian@freefall.cdrom.com, hackers@FreeBSD.org
In-Reply-To: <199504200741.RAA06984@godzilla.zeta.org.au> from "Bruce Evans" at Apr 20, 95 05:41:13 pm
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> >	sd0 is the first scsi disk

> >	c0t0l0 is the disk at scsi bus 0 target 0 lun 0

> This would defeat one advantage of devfs - reduction of clutter in /dev.

Why? Only the one you're using would be symlinked into dev. If you're running
an unattended machine you don't want disks drifting to new locations when one
goes down.

> Why decides how h/w/ devices are mapped to ttys?

So if your COM2 board goes out you don't find your unattended SLIP connection
trying to talk to your Postscript laser printer and you've got a non-callbacked
getty suddenly talking to your V.34 modem. In an unattended machine the BSD
"device drift" problem is a real concern.