Re: Amount of virtual disks with KVM

[Avi Kivity <avi@redhat.com>]

On 11/29/2009 07:58 PM, Daniel Bareiro wrote:
> Hi all!
>
> I'm trying to make a migration of a Xen PV virtual machine to KVM. For
> this I'm starting a VM with SystemRescueCD [1] of the following way:
>
> # /usr/local/kvm/bin/qemu-system-x86_64 -hda /dev/vm/hermes-disk -boot d \
>   -cdrom /space/isos/systemrescuecd-x86-1.3.2.iso -m 512 -daemonize -vnc \
>   :2 -k es -localtime -hdb hermes-raiz.raw -hdc hermes-var.raw -net \
>   nic,vlan=0,macaddr=00:16:3e:00:00:34 -net tap
>
> Where hermes-disk is the disk that will use the VM in the destination
> host, and hermes-raiz.raw and hermes-var.raw are the raw partitions that
> was using the Xen PV virtual machine in source host.
>
> My idea is to create the partitions in hermes-disk, to mount the raw
> partitions and to do "cp -a" to the partitions created in hermes-disk,
> but after boot only hermes-disk and hermes-raiz.raw are exported (like
> sda and sdb). Which can be the problem?
>
>    

-cdrom and -hdc occupy the same IDE slot (second bus, master drive).  
Try -hdd instead of -hdc.

-- 
Do not meddle in the internals of kernels, for they are subtle and quick to panic.