[Libguestfs] using virt-v2v

[Arsène Gschwind]

Hi,

Thanks a lot for your answer, I was thinking I could use it to migrate 
from KVM too.
There is no easy way to migrate from a libvirt/KVM installation to 
oVirt, I'm doing some copy using tar to be able to use thin provisioning 
on the oVirt side.

Rgds,
Arsène

On 07/27/2015 07:56 PM, Richard W.M. Jones wrote:
> On Mon, Jul 27, 2015 at 07:10:05PM +0200, Arsène Gschwind wrote:
>> Hi,
>>
>> I'm trying to migrate some VMs from KVM to oVirt using virt-v2v and
>> I cannot get it to work.
>>
>> What will be the best/working strategy for doing such a migration.
> You don't need to (and _shouldn't_) use virt-v2v if the guest already
> works on KVM.  It's only for importing guests which run other
> hypervisors like VMware, Xen or Hyper-V (or physical, via virt-p2v).
>
> Having said that, there was a problem that oVirt didn't support
> imports of disk images.  I don't know if that feature was added yet.
>
>> Where do I have to install virt-v2v on the oVirt management host?
>> I've setup a RHEL 7.1 VM with the libguestfs preview for RHEL 7.2,
>> will this work that way. My VM are located on FC LUNs on the KVM
>> server, I'm able to access libvirt using qemu+ssh but the it returns
>> an error that it cannot find the device where the VM is located on.
> For reference if trying to use virt-v2v to import a VMware/etc guest,
> there are two ways to do this.  Either install virt-v2v in any RHEL 7
> VM anywhere (but preferably somewhere with a good network connection
> to the source and destination), and use a command line like the one
> suggested here:
>
> http://libguestfs.org/virt-v2v.1.html#convert-from-vmware-to-rhev-m-ovirt
>
> Or with oVirt 3.6+ there is a GUI interface you can use.  In that case
> virt-v2v is installed on a RHEV-H node, but that should be transparent
> to the end user.
>
> Rich.
>