From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Subject: Re: linux ext3 partition hosed, is this hardware of software error?
Date: Sun, 21 Dec 2008 14:49:13 +0000
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References: <20081221143640.GF1509@gamma.logic.tuwien.ac.at>
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To: Norbert Preining <preining@logic.at>
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>          res 41/40:40:38:3d:95/91:00:0a:00:00/6a Emask 0x409 (media error) <F>
> ata1.00: status: { DRDY ERR }
> ata1.00: error: { UNC }

Bad sectors

> Buffer I/O error on device sda3, logical block 12
> Buffer I/O error on device sda3, logical block 13

Right near the start of the disk.

Make a copy of the partition with a recovery tool and write it somewhere
(file on another disk whatever) and keep it safe. Make a copy of that and
fsck the copy. You may need to use the alternate superblock option on
fsck for this.

Alan