[kwlug-disc] One last desperate atempt - Recovering a microSD

Khalid Baheyeldin kb at 2bits.com
Sun Jun 13 15:25:45 EDT 2010

On Sun, Jun 13, 2010 at 12:01 PM, Chris Irwin <chris at chrisirwin.ca> wrote:

> On Sat, 2010-06-12 at 20:40 -0400, John Van Ostrand wrote:
> > I had this issue with a friends SD. First thing I did was DD and image
> off.
> > It would die partwa through so I used dd seek option to start where it
> left
> > off. I ended up patching together a partial image.
> I use dd_rescue. It has some level of intelligence for skipping past
> errors so you don't need to manually set offsets.

This is what Ubuntu/Debian shows in the repositories:

Package: ddrescue
Version: 1.14-1
Priority: optional
Section: universe/utils
Maintainer: Ubuntu Developers <ubuntu-devel-discuss at lists.ubuntu.com>
Uncompressed Size: 86.0k
Depends: libc6 (>= 2.4)
Description: copy data from one file or block device to another dd_rescue is
a tool to help you to save data from crashed partition. Like dd, dd_rescue
does copy data from one file or block device to another. But dd_rescue does
not abort on errors on the input file (unless you specify a maximum error
number). It uses two block sizes, a large (soft) block size and a small
(hard) block size. In case of errors, the size falls back to the small one
and is promoted again after a while without errors. If the copying process
is interrupted by the user it is possible to continue at any position later.
It also does not truncate the output file (unless asked to). It allows you
to start from the end of a file and move backwards as well. dd_rescue does
not provide character conversions.

 Please note that this is the dd_rescue version of Kurt Garloff providing
the /bin/dd_rescue executable. If you are searching for the GNU ddrescue
version please check out the gddrescue package instead. Homepage:

There is also this one:

Package: rdd
Version: 2.0.7-2
Priority: optional
Section: universe/utils
Maintainer: Ubuntu MOTU Developers <ubuntu-motu at lists.ubuntu.com>
Uncompressed Size: 205k
Depends: libc6 (>= 2.5-0ubuntu1), libssl0.9.8 (>= 0.9.8c-1), zlib1g (>=
1:1.2.1), python
Description: a forensic copy program
 A forensic copy program developed at and used by the Netherlands Forensic
Institute (NFI). Unlike most copy programs, rdd is robust with respect to
read errors, which is an important property in a forensic operating

Khalid M. Baheyeldin
2bits.com, Inc.
Drupal optimization, development, customization and consulting.
Simplicity is prerequisite for reliability. --  Edsger W.Dijkstra
Simplicity is the ultimate sophistication. --   Leonardo da Vinci
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