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Date:      Mon, 16 Feb 1998 14:11:18 +0000 (GMT)
From:      Terry Lambert <tlambert@primenet.com>
To:        tlambert@primenet.com (Terry Lambert)
Cc:        garbanzo@hooked.net, brian@worldcontrol.com, current@FreeBSD.ORG
Subject:   Re: Soft updates: OPTIONS Vs. TUNABLES, and a plan...
Message-ID:  <199802161411.HAA08937@usr01.primenet.com>
In-Reply-To: <199802152341.QAA08289@usr01.primenet.com> from "Terry Lambert" at Feb 15, 98 11:41:43 pm

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> Not doing the hack is problematic; one wonders how a root FS can ever
> be tuned after the system has been booted.
> 
> Mounting read-only is *not* sufficient.  This is because there exist
> read dependencies for read-before-write operations.  You can probably
> get away with it, but you are flying by the seat of your pants if
> you do so.

Ugh.

OK, here are "seat-of-your-pants" instructions:

1)	Boot single user, with root mounted read-only
2)	Tunefs soft updates on
3)	*immediately* run the "reboot" program.


					Terry Lambert
					terry@lambert.org
---
Any opinions in this posting are my own and not those of my present
or previous employers.

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