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Date:      Sat, 9 Nov 2002 19:01:49 -0800 (PST)
From:      David Wolfskill <david@catwhisker.org>
To:        eugen@kuzbass.ru, stable@FreeBSD.ORG
Subject:   Re: backups of SUPERBLOCK
Message-ID:  <200211100301.gAA31nfF023989@bunrab.catwhisker.org>
In-Reply-To: <3DCDCB60.1D1A34C2@kuzbass.ru>

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>Date: Sun, 10 Nov 2002 09:58:40 +0700
>From: Eugene Grosbein <eugen@kuzbass.ru>

>Recently I suffered from unstable power supply, after reboot
>fsck said INCORRECT SUPER BLOCK, BAD MAGIC etc. etc.
>I managed to revive filesystem using fsck -b 32 as I remember
>that first copy of superblock is generally located at block 32.

>I wonder, however, how can I know complete list of superblocks 
>for all of my filesystems. One can write down the list 
>when (if) uses newfs but it's hard if a drive is prepared during initial
>installation and it's impossible if a drive was prepared using sysinstall
>while in muliuser. 

See the -N flag for newfs.

Cheers,
david       (links to my resume at http://www.catwhisker.org/~david)
-- 
David H. Wolfskill				david@catwhisker.org
To paraphrase David Hilbert, there can be no conflicts between the
discipline of systems administration and Microsoft, since they have
nothing in common.

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