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Date:      Wed, 26 Jul 2000 17:20:05 +0100
From:      Geoff Buckingham <geoffb@chuggalug.clues.com>
To:        "Marcelo J. Iturbe" <marcelo@msm.cl>
Cc:        stable@FreeBSD.ORG
Subject:   Re: URGENT: bad superblock
Message-ID:  <20000726172005.A79537@chuggalug.clues.com>
In-Reply-To: <4.3.2.7.2.20000726110451.02e6ef00@msm.cl>; from Marcelo J. Iturbe on Wed, Jul 26, 2000 at 11:13:05AM -0400
References:  <4.3.2.7.2.20000726110451.02e6ef00@msm.cl>

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On Wed, Jul 26, 2000 at 11:13:05AM -0400, Marcelo J. Iturbe wrote:
> Hello,
> Sorry for the crosspost but this is rather urgent
> 
> Running FreeBSD 3.3 I have the following scenario:
> The filesystem won't boot.
> When I try to mount (/dev/da0s2) it from an emergency boot disk I get a 
> "Incorrect Superblock" error.
> When I try to run fsck it gives me an error about wrong magic number.
> Here is the partition information

What kind of file system is this? (ie ffs or FAT16/32)
If it is ufs/ffs are you specifying a partition as well as a slice?

example command line>mount /dev/da0s2a /mnt

> Cyl=11065 heads=255 sector/tracks 63 (16065 blocks/cyl)
> 
> partition:1
> SysID 130,(swap)
>   start 16065, size 498015 (243 meg), flag 0
>    Beg: cyl 1/  sector 1 head 0
>    end: cyl 31  sector 63 head 254
> 
> partition 2 (the important one)
> SysID 165 (freeBSD)
>   start 1012095, 16755795 (8181 meg) flag 80
>    beg: cyl 63/  sector 1 head 0
>    end    1023   sector 63 head 254
> 
> When I try to check for bad blocks via the install disk I get:
> Blocks 17767700 to 17767889 are needed for bad144 information but isn't in use.
> 
> 
> 
> ***********************************************
> 	  Chief Technical Officer
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>                   MSM Interactive.
>       El Bosque Norte 0134, Las Condes, Chile.
> Phone: (56-2) 234-9852  Fax: (56-2) 233-8912
> Email: marcelo@msm.cl    http://www.msm.cl
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> 
> 
> 
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