Just out of interest, is there any reason why it shouldn't work going from a 
smaller hard disk to a larger hard disk? 

I've used something similar to backup a disk image to a file on a larger disk 
- sending the output of dd across to another machine by piping it through 
netcat, where it's written to a file (by dd agan) - great if you're 
installing a new distro on your laptop and suspect you might trash it ;-) one 
command from a tomsrtbt floppy and you've got the HD restored to it's backup 
state, bootloader and all.

Anyway, reason I ask if you can do it from small HD -> large HD is that I'm 
thinking of changing the HD in my IPCOP box with the one in my www server box 
(which is currently the smaller of the two - obviously the server needs the 
larger HD, and IPCOP doesn't). Reinstalling IPCOP on the smaller HD is no big 
deal obviously, IPCOP installs being what they are :-) But I was rather 
hoping for the server that I could just write the HD image from the smaller 
HD directly to the larger HD (using dd), keeping partition tables and 
bootloader intact. I imagined that it'd all work nicely, and I'd just need to 
create one more partition at the end of the disk to use the extra space. Can 
anyone point out a good reason why this won't work?

Cheers,
Gareth


On Fri, 26 Mar 2004 08:01, Steve Holdoway wrote:
> Hi Paul,
>
> The disks should be the same size if you're doing that. Otherwise, do
> it on a per partition basis, having set the new partitions up the same
> as the old ones.
>
> You may want to play with the bs option to improve performance, but I
> doubt you've got that luxury!
>
> ...and make sure you've got a boot floppy, you're probably not going
> to have a bootstrap on the new one!
>
> Good Luck,
>
> Steve
>
> On Fri, 26 Mar 2004 07:37:41 +1200, you wrote:
> >Hi all,
> >
> >Is a simple dd:
> >dd if=/dev/hdc of=/dev/hdx
> >capable of 'cloning' hdc into hdx? hdc is nearly dead so I will be
> >getting a replacement tomorrow and I don't fell like reinstalling
> >everything.
> >
> >Cheers
> >
> >Paul

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