Drive Recovery Software

[George Toft]

Dazed_75 wrote:
> 
> 
> On 11/30/06, *Patrick Fleming, EA* <plug at rwcinc.net 
> <mailto:plug at rwcinc.net>> wrote:
> 
>     -----BEGIN PGP SIGNED MESSAGE-----
>     Hash: SHA1
> 
>     If you are just trying to copy the data from a failing drive to a good
>     drive, dd_rescue is a pretty decent tool. It's on Knoppix, should be on
>     other live cds. dd_rescue works even when dd fails.
> 
> 
> 1) Having never seen this I wondered if it worked differently than using 
> the "noerror" option to dd which makes it not stop on errors. But then I 
> presumed dd still writes an output block.  Does anyone know if that is 
> true?

This link says no:
http://www.oreillynet.com/sysadmin/blog/2004/07/save_your_data_from_the_click.html

Comments

An alternative to dd_rescue
dd conv=noerror
lbruno | July 17, 2004 03:19 AM

An alternative to dd_rescue
Sorry, not really. dd with conv=noerror writes nothing in the image in 
case of a bad block. Your image gets smaller and may be not mountable. 
dd_rescue writes Zeros in the image. The size of your image becomes the 
size of the partition.

HAND

Oliver
Sums | July 21, 2004



> 2) I was intriguged so loaded Knoppix 5 to look at it. There was no man 
> page, but dd_rescue --help gave enough info to intrigue me.  So I did a 
> web search and found http://www.garloff.de/kurt/linux/ddrescue/ which is 
> the author's site for it.  I also found 
> http://www.oreillynet.com/sysadmin/blog/2004/07/save_your_data_from_the_click.html 
> <http://www.oreillynet.com/sysadmin/blog/2004/07/save_your_data_from_the_click.html> 
> which mentions a front end for dd_rescue that sounds intriging.  
> Unfortunately the link in the article does not work, but 
> http://www.kalysto.org/utilities/dd_rhelp/download/index.en.html 
> <http://www.kalysto.org/utilities/dd_rhelp/download/index.en.html> does 
> work.  NOTE: I have not tried this and have to run out for some errands 
> now.  Would love to hear from anyone who HAS tried it.


I stopped dd and am now using dd_rescue in reverse mode.  It's cruising 
along.  I'll let y'all know how it works out.


George Toft, CISSP, MSIS
623-203-1760