Hi,

On Fri, Dec 28, 2012 at 01:19:21PM +0100, Ralf Mardorf wrote:
> On Fri, 2012-12-28 at 12:50 +0100, berenger.mo...@neutralite.org wrote:
> > > I have heard good things of PhotoRec:
> > >
> > > http://en.wikipedia.org/wiki/PhotoRec
> > > http://www.cgsecurity.org/wiki/PhotoRec
> > >
> > > But I have no personal experience of it.  The advice is always to 
> > > copy the
> > > drive that needs rescuing to another drive, and work on the copy, not 
> > > the
> > > orginal.  Again, I have not tried it.
> > >
> > > Lisi
> > 
> > Thanks for the hint, I'll try it this afternoon on (2)
> 
> Mount the drive read only, than there is no need to backup. There are
> all kinds of commands to recover data, usually they don't recover the
> data on the corrupted drive, but save the files to another place, so
> it's no problem to mount a drive read only.

Yah, if you can mount, then it is good idea to mount as read-only first
to recover and secure data by copying them to another disk. 

But that may not get you as much data as we wish.  testdisk/photorec
tools can work on corrupted disk without using normal mounting.  You
certainly need place to write recovered data.  Making disk image and
working on it makes things easy. 

Osamu


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