From: David Greaves <david@dgreaves.com>
To: Krekna Mektek <krekna@gmail.com>
Cc: Mike Hardy <mhardy@h3c.com>, linux-raid@vger.kernel.org
Subject: Re: RAID 5 inaccessible - continued
Date: Tue, 14 Feb 2006 17:41:14 +0000 [thread overview]
Message-ID: <43F2163A.6030302@dgreaves.com> (raw)
In-Reply-To: <8b24c8b10602140918s136b5075s@mail.gmail.com>
Krekna Mektek wrote:
>I want to rebuilt from the good one and the faulty one. That's why I
>wanted to dd the disk to an image file, but it complains it has no
>boot sector.
>
>
>
>>>>I did the folowing:
>>>>
>>>>dd conv=noerror if=dev/hdd1 of=/mnt/hdb1/Faulty-RAIDDisk.img
>>>>losetup /dev/loop0 /mnt/hdb1/Faulty-RAIDDisk.img
>>>>
>>>>
You could try doing this again using ddrescue (google if you need to
install it):
ddrescue dev/hdd1 /mnt/hdb1/Faulty-RAIDDisk.img /mnt/hdb1/Faulty-RAIDDisk.log
Then do it again using -r10 (to increase the retries on the faulty sectors)
ddrescue -r10 dev/hdd1 /mnt/hdb1/Faulty-RAIDDisk.img /mnt/hdb1/Faulty-RAIDDisk.log
This will be much quicker because the log file contains details of the
faulty sectors.
With luck (mucho luck) you may not even lose data.
David
--
next prev parent reply other threads:[~2006-02-14 17:41 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-13 15:08 RAID 5 inaccessible - continued Krekna Mektek
2006-02-14 8:35 ` Krekna Mektek
2006-02-14 9:40 ` Neil Brown
2006-02-14 10:35 ` Krekna Mektek
[not found] ` <43F1FFE1.2010107@h3c.com>
2006-02-14 17:18 ` Krekna Mektek
2006-02-14 17:41 ` David Greaves [this message]
2006-02-15 9:36 ` Krekna Mektek
[not found] ` <8b24c8b10602151218i43886b75h@mail.gmail.com>
[not found] ` <43F3B119.1000800@dgreaves.com>
2006-02-16 14:32 ` Krekna Mektek
2006-02-16 15:08 ` Krekna Mektek
2006-02-16 16:42 ` Krekna Mektek
2006-02-15 9:35 ` Krekna Mektek
2006-02-15 9:59 ` Burkhard Carstens
2006-02-15 15:09 ` Krekna Mektek
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=43F2163A.6030302@dgreaves.com \
--to=david@dgreaves.com \
--cc=krekna@gmail.com \
--cc=linux-raid@vger.kernel.org \
--cc=mhardy@h3c.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.