rsync or dd to clone a hard drive?

[JB]

Maxime Alarie <malarie <at> processia.com> writes:

> 
> I have never used dd to clone a hard disk.  
> 
> I use rsync for a lot of   my backups , and I was wondering
> what would be the best tool to clone a  disk.  I don’t want 3rd
> party software also.  I want built in command  line tools.
> 
> I know rsync will resync where it left off if I encounter a
> problem, what about dd?  Do I  absolutely have to creat an image before
> cloning? 
> Ex: dd if=/dev/sda of=sda.img   or I can use dd if=/dev/sda of=/dev/sdb?
> 
> Thanks.
> 
>

Hi,
if you want to clone it, take a look at possible tools as discussed in a thread
here:
22 Aug 07:08	Suvayu Ali  *	Migrating data off a failing drive

JB