[libvirt-users] migrate a guest from VMware to KVM

Michal Privoznik mprivozn at redhat.com
Thu Dec 17 12:20:25 UTC 2015


On 17.12.2015 13:06, Andrei Perietanu wrote:
> I am trying to migrate a VMware guest to KVM. I have the .vmdk file which I
> convert to qcow2 format using qemu-img convert.
> 
> The next step is to import the new img file.
> 
> If I use virt-install --import <guest config options> it all works fine.
> But when I try the same think using the libvirt API I get the "no boot disk
> found" message when starting the vm.
> 
> When importing the VM through the libvirtAPI, I use the same xml
> description virsh outputs (dumpxml) after initially doing the import.
> 
> xml - the description I got using virsh xmldump <domain name>
> 
> xmlDesx = xml
> conn.defineXML(xmlDesc)
> 
> One other important aspect is I am using a directory storage pool to store
> all my volumes (.img files).
> When I use virsh to import the vm, the storage pool recognizes the new
> volume (the .img file I converted from the .vmdk file). But when I use the
> libvirtAPI, it does not.
> 
> So my guess is that because the storage pool does not see the new volume
> when I import the vm is the reason I get the "no boot disk found message".
> 
> Is there a way to tell the storage pool about the new volume?
> What exactly does virsh do and I am not ?

'virsh pool-refresh' may solve your issue. Then, isn't virt-install
setting boot order too? If so, you will need to 'virsh edit $dom' and
adjust the domain XML to set correct boot order once you've attached
disk to domain.

Michal




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