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aragon
Joined: 15 Oct 2007 Posts: 1698 Location: Germany
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Posted: Tue 02 Nov 2010, 15:46 Post subject:
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please read 4 posts up...
aragon
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davids45

Joined: 26 Nov 2006 Posts: 1237 Location: Chatswood, NSW
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Posted: Tue 02 Nov 2010, 21:30 Post subject:
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G'day,
I've just lost a partition on my sda disk (sda7) which fails to boot (it has a number of Frugal Pups) or to mount from Pup on another partition.
I've got ddrescue to copy the faulty sda7 to another drive. It reports a 119kB error before starting to copy what it can from sda7.
On this copy, fsck reports a super-block error/corruption, as it does if I try directly accessing the original sda7 with fsck.
Is this the right way to use ddrescue (is there some other program to try to explore the rescued data or the original ext partition)?
And is a super-block error fixable? Or do I just wipe and reformat the partition with GParted and re-install the Frugals and their sfs files
Thanks for any advice,
David S.
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abushcrafter

Joined: 30 Oct 2009 Posts: 1438 Location: England
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Posted: Wed 03 Nov 2010, 07:49 Post subject:
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aragon wrote: | please read 4 posts up...
aragon | Thanks.
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aragon
Joined: 15 Oct 2007 Posts: 1698 Location: Germany
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Posted: Wed 03 Nov 2010, 14:49 Post subject:
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David,
I've googled a little about the superblock error and it seems to me, that it's fixable without dataloss.
I'll see if i could find a good advice about a stategy snd will report back.
Aragon
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aragon
Joined: 15 Oct 2007 Posts: 1698 Location: Germany
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Posted: Wed 03 Nov 2010, 16:47 Post subject:
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some more infos i've found (and on disclaimer )
disclaimer: use at your own risk...
from ddrescue online-manual
Quote: | If you are trying to rescue a whole partition, first repair the copy with e2fsck or some other tool appropiate for the type of partition you are trying to rescue, then mount the repaired copy somewhere and try to recover the files in it. |
http://www.gnu.org/software/ddrescue/manual/ddrescue_manual.html
assuming that it's ext2/ext3:
http://www.cyberciti.biz/tips/surviving-a-linux-filesystem-failures.html
last but not least: good luck
aragon
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chrome307

Joined: 15 Jan 2009 Posts: 713
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Posted: Fri 19 Nov 2010, 08:28 Post subject:
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Sorry posted in wrong thread
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xyrion
Joined: 30 Nov 2010 Posts: 4
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Posted: Sat 16 Jul 2011, 01:00 Post subject:
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Thank you, aragon!
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davids45

Joined: 26 Nov 2006 Posts: 1237 Location: Chatswood, NSW
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Posted: Sat 16 Jul 2011, 21:02 Post subject:
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G'day aragon,
A belated 'thank you' from me too, as I see I did not let you know your links advice solved my above posted problem with my sda7 frugals partition.
David S.
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