linux-ext4 - Re: linux ext3 partition hosed, is this hardware of software error?

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Message-ID: <20081221144913.76ca53d3@lxorguk.ukuu.org.uk>
Date:	Sun, 21 Dec 2008 14:49:13 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Norbert Preining <preining@...ic.at>
Cc:	linux-kernel@...r.kernel.org, linux-ext4@...r.kernel.org
Subject: Re: linux ext3 partition hosed, is this hardware of software error?

>          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
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