Re: [gentoo-user] Corrupt USB pen drive

[Dan Farrell <dan@spore.ath.cx>]

On Thu, 17 May 2007 16:38:44 +0100
Mick <michaelkintzios@gmail.com> wrote:

> On Thursday 17 May 2007 15:45, Dan Farrell wrote:
> > On Thu, 17 May 2007 12:36:25 +0100
> >
> > Mick <michaelkintzios@gmail.com> wrote:
> 
> > >
> > > I tried to dd the boot sector so that I can look at it on my hard
> > > drive, but it cannot access /dev/sda.  Is there anything that I
> > > can do with my Gentoo to recover the files on this USB?
> >
> > have you tried reading raw from the device like
> >
> > | dd if=/dev/sda of=sda.image
> >
> > ?  That might do the recovery.  How to get it out of the image is
> > the same problem but once the backup succeeds you can plug it into a
> > windows xp box and reformat, and you will probably end up with the
> > same partition structure as originally.  Then you can try to read
> > the right part of the image out of the image, once you get the
> > numbers from fdisk on the newly formatted drive, and end up with an
> > image of sda1.  From there you should be able to mount sda1 and
> > read out the data, if it isn't corrupted.
> 
> Thanks Dan, as I said above I tried to extract the MBR out of it by
> running:
> 
> dd if=/dev/sda of=/tmp/r1 bs=512
> 
> But couldn't access it whatsoever.
> 
> > I also am wondering what happened to the partition table.  I bet
> > your coworker has a security-compromised box at home (oh, runs
> > windows? right...)  At any rate, if the data is recoverable, it may
> > be possible to rebuild the partition table if you can find out
> > where the partition started and ended.  People have done it before,
> > i've read online about it.
> 
Hmm!  Perhaps its broken.
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