[YLUG] Data recovery End of the story ?

[Patrick Dupre]

On Tue, 28 Jul 2009, Roger Leigh wrote:

> On Tue, Jul 28, 2009 at 12:20:23PM +0100, Patrick Dupre wrote:
>
>> 1) dd if=/dev/sdx of=/dev/sdy   did not work (incomplet data copy)
>
> Was this because the destination was too small, or an error
> prevented a full copy?
No, sdx was 80Go, sdy was 160 !B
>
>> 2) I was rescued by ddrescue /dev/sdb11 /dev/sdcx
>
> If dd failed while ddrescue worked, this implies that disk errors
> caused the copy to abort.  ddrescue continues on error so that
> it copies every /readable/ block, but if particular blocks are bad
> they won't get copied.  The implication of this is that your disk
> isn't just corrupted, it's broken and needs replacing.

I do not think so, the partition table was just a bit messy.
and the recover was perfect after a fsck -y
the partition was in lost+found dir with a # number.
The rest seems perfectly OK.

> If you are sure you've got all the data off that you are going to,
> use smartctl to check the disk status, and badblocks with the -w
> and -f options to test it (plus -v -s to get more information about
> its progress).
>
>
> Regards,
> Roger
>

-- 
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  Patrick DUPRÉ                      |   |
  Department of Chemistry            |   |    Phone: (44)-(0)-1904-434384
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