On Thu, Mar 21, 2024 at 7:03 PM Cyril VINH-TUNG <cyril@invitu.com> wrote:

Hello

Here's the technique we use :
- create manually the vm on ovirt with same disks (same size that original but you can choose target type, thin provision or preallocated)
- on any node, force activating the disks to make them writable at the os level (lvm, vgchange...)
- if the disk type is the same on target and destination, you can use dd over netcat to copy the disks
- if the type is not the same, you might use qemu-img convert over netcat

This is very fragile and dangerous, you must really know what you are doing :-)

If you already imported the disks from the other system, uploading them to any storage domain

in any wanted (and supported) image format and allocation policy is much easier and faster

using ovirt-img.

See https://www.ovirt.org/media/ovirt-img-v8.pdf

If you have physical access to the node, you might use a flat backup

Another workaround is to backup/restore the vm with a backup tool that works both with vmware and ovirt... I would say vprotect or vinchin

This should also work, but when importing vms from vmware, it is not enough to copy the disk data a is,

you want to modify it to remove vmware bits and add the ovirt bits - virt-v2v does all this for you.

Nir