From: Michael Evans <mjevans1983@gmail.com>
To: David Reniau <david.reniau@gmail.com>
Cc: linux-raid@vger.kernel.org
Subject: Re: My Thecus RAID-0 filesystem unmountable with mdadm. Please help.
Date: Mon, 24 May 2010 14:57:50 -0700 [thread overview]
Message-ID: <AANLkTimbLUcCxGwo81HJNFLlrXq9a28j8CNpUcSVlSOr@mail.gmail.com> (raw)
In-Reply-To: <AANLkTinJ2gaVnrPIlJT8m9Ic11qevFNRQgQ-shZropEt@mail.gmail.com>
Way too big and spread out, I don't know if anyone will have the time
to read that.
First, https://raid.wiki.kernel.org/index.php/RAID_Recovery
Second, what parameters do you remember about the original array?
Third, you probably want to try hexdumping the first megabyte or two
of each drive and looking for a superblock of your filesystem.
(man hexdump)
hexdump -Cn $((1024*1024)) /dev/whatever
You may also want to use dd to get the end of the block device.
Most importantly, knowing //where// the superblock is in your device
will allow for a guess about where in to the block-dev the data is
supposed to start. That ///may/// allow for the creation of a
superblock with the proper alignment (and hopefully chunk size) to
read your data.
next prev parent reply other threads:[~2010-05-24 21:57 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-24 12:40 My Thecus RAID-0 filesystem unmountable with mdadm. Please help David Reniau
2010-05-24 21:57 ` Michael Evans [this message]
2010-05-25 0:33 ` Neil Brown
2010-05-25 5:57 ` Mikael Abrahamsson
2010-05-25 5:09 ` Luca Berra
2010-05-25 7:59 ` John Robinson
-- strict thread matches above, loose matches on Subject: below --
2010-05-27 1:03 David Reniau
2010-05-27 10:39 ` John Robinson
2010-05-28 1:32 ` Michael Evans
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