Copy bad HD to a good HD

Karl F. Larsen klarsen1 at
Tue Jan 5 14:16:19 UTC 2010

Franz Waldmüller wrote:
> Karl F. Larsen wrote:
>> 	I have an old HD that will not boot up and show windows, but 
>> does run. I would like to copy as much as possible from the 
>> bad to the good HD.
>> 	First I thought about dd. It looks like $ dd if=/dev/scd 
>> of=/media/disk/backup bs=2048 conv=notrunc and it looks like 
>> it might work.
> dd will stop at bad sectors. try the ddrescue tool instead.
> apt-cache show ddrescue
> Package: ddrescue
> Priority: optional
> Section: universe/utils
> Installed-Size: 76
> Maintainer: Ubuntu MOTU Developers <ubuntu-motu at>
> Original-Maintainer: Ayman Negm <negm at>
> Architecture: i386
> Version: 1.13-3
> Depends: libc6 (>= 2.5-0ubuntu1)
> Filename: pool/universe/d/ddrescue/ddrescue_1.13-3_i386.deb
> Size: 17614
> MD5sum: 2838de04c96295622ab5f3d50a4c1948
> SHA1: 3afadcf5627fa32481dce720e509057a080bd0e2
> SHA256: 52c6b389821e4b2a2a704fdc4bc20dafb81cc616854028e9955fef5d301f71e1
> Description: copies data from one file or block device to another
>   dd_rescue is a tool to help you to save data from crashed partition.
>   It tries to read and if it fails, it will go on with the next sectors
>   where tools like dd will fail. If the copying process is interrupted
>   by the user it is possible to continue at any position later.
>   It can copy backwards.
> Bugs:
> Origin: Ubuntu
> Wish you luck
> Franz

	Thanks for the info! I just apt-get install gddrescue and it 
looks as if it will work according to the man page.

73 Karl


	Karl F. Larsen, AKA K5DI
	Linux User
         Key ID = 3951B48D

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