[TriLUG] Copying Files from a Dying HDD...with a twist

[Mauricio Tavares via TriLUG]

On Thu, Jul 5, 2018 at 9:48 AM, Brian via TriLUG <trilug at trilug.org> wrote:
> ddrescue is underway as we type.  I had not already tried it, it being
> something that fell into one of the many holes in my Linux knowledge! So
> far, I'm quite impressed by its reported progress.  It's already getting way
> better mileage than I was.
>
> On 07/03/2018 05:13 PM, David Burton via TriLUG wrote:
>>
>> Better yet, make a couple of copies of the recovered .iso (being sure to
>> also save the ddrescue logfile), and then use its "fill" option to fill
>> the
>> bad blocks two different ways, e.g., with 0x00 bytes in one copy, and with
>> 0xFF bytes in another copy.
>> [then compare files across the two images]
>
>
> Great idea!  I'll keep that in mind.

      When I get my first iso, I create a copy and work out of it.
This way I can always go back.

>>
>> If it were a Windows file system, I'd have some additional suggestions,
>> working from the ddrescue logfile to identify the damaged files.
>
>
> It is, actually.  It's the godawful-slow HDD that came with my laptop and
> has Windows 10 on it, which I still use for some software synthesizers.  I
> was in the middle of dd-ing it across to a new SSD (with an external
> USB-SATA adapter) when I accidentally knocked it off the desk :-(
>
      Gravity is a harsh mistress...

> -B
>
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