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Date:      Fri, 6 Feb 2009 21:24:21 +0100
From:      Roland Smith <rsmith@xs4all.nl>
To:        Robert Huff <roberthuff@rcn.com>
Cc:        questions@freebsd.org
Subject:   Re: disk recovery problem(s)
Message-ID:  <20090206202421.GA55683@slackbox.xs4all.nl>
In-Reply-To: <18828.37913.857833.472632@jerusalem.litteratus.org>
References:  <18828.37913.857833.472632@jerusalem.litteratus.org>

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On Fri, Feb 06, 2009 at 02:48:41PM -0500, Robert Huff wrote:
>=20
> 	Had a power outage recently; when trying to fsck several
> external hard drives I'm getting unexpected errors.
> 	For example:
>=20
> huff@>> fsck /dev/da3a
> ** /dev/da3a
> ** Last Mounted on /backup
> ** Phase 1 - Check Blocks and Sizes
> ** Phase 2 - Check Pathnames
> ROOT INODE UNALLOCATED
> ALLOCATE? [yn]=20
>=20
> 	a) what's probably happened?

Error messages are explained in Appendix A of
/usr/share/doc/smm/03.fsck/paper.ascii.gz

Unfortunately it says that this error "should never happen". :-/

Is the drive connected by USB? Some USB disk interface chips are quite quir=
ky.

> 	b) is there a way to recover the data?

Answer y, and all directorys and files found in the root will appear in
lost+found, unless the attempt to allocate the root inode fails..=20

Roland
--=20
R.F.Smith                                   http://www.xs4all.nl/~rsmith/
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