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Date:      Tue, 21 Dec 1999 19:02:02 -0800 (PST)
From:      Tom <tom@uniserve.com>
To:        Ben WIlliams <williamsl@Home.Com>
Cc:        freebsd-stable@FreeBSD.ORG
Subject:   Re: Re[2]: SOFTUPDATES
Message-ID:  <Pine.BSF.4.02A.9912211859190.227-100000@shell.uniserve.ca>
In-Reply-To: <9880.991221@Home.Com>

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On Tue, 21 Dec 1999, Ben WIlliams wrote:

>    How far back is "used to"? I have a 3.2-RELEASE box that I tried
> booting into single-user mode both via `shutdown now` and 'boot -s'
> and couldn't get it to enable soft updates on /. When I did
> `shutdown now` it would complete the `tunefs -n enable rwd0s1a` but

  Probably because the r* superblocks are kept in memory, and don't modify
the ondisk superblock.

  I think tunefs needs some more IQ in what devices it modifies.  tunefs
is fine to use with r* devices if you just want to see what the current
settings are.  I think tunefs should refuse to use the raw device for
updating parameters, and always use the raw device to display parameters
(so that -p works when the file system is mounted).

Tom



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