# dd if=/dev/sda | ssh root@(new_vm) "(dd of=/dev/sda)"
Type the root password, shutdown the old VM and reboot your new vm.
(PS: You don't need to shutdown the old vm to this proccess).
I do this everytime, I don't like copy the HD files using cp, tar or rsync because it try to copy the /proc, /dev and a lot virtual devices. Using dd it copies just the HD bits, the boot sector, etc.
--
Lucas Timm, Goiânia/GO.
http://timmerman.wordpress.com
(62) 9157-0789
2010/6/24 C.J. Adams-Collier <cjac@xxxxxxxxxxxxxxx>
I often use rsync -a for remote systems or cp -a for local systems.
I've also used dd. You can have dd output to stdout, pipe it to ssh and
have ssh output to dd on the other end.
You can also connect to a SAN device on the source and dd from the local
block device to the SAN device.
Lots of ways to do it ;)
Cheers,
C.J.
On Thu, 2010-06-24 at 10:52 -0400, Kelvin Edmison wrote:
>
>
> On 24/06/10 7:17 AM, "Poh Yong Hwang" <yongsan@xxxxxxxxx> wrote:
>
> > I have a server running CentOS 5.5 with KVM capabilities. I need to migrate
> > all the VMs to another server with the exact same hardware specs. The problem
> > is it is running on individual harddisks, not shared storage. What is the best
> > way to migrate to minimise downtime?
>
> I've had good success using dd and nc (netcat) to copy the contents of a
> disk or disk image from one machine to another, and verifying the copy was
> successful with a md5sum or sha1sum of both the original and copied disk.
>
> Kelvin
>
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--
Lucas Timm, Goiânia/GO.
http://timmerman.wordpress.com
(62) 9157-0789
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