To anyone who want to do this having VMDK image. Make backup of you VM - just in case Shutdown your VM Convert VMDK to qcow2  qemu-img convert -p -f vmdk -O qcow2 /mnt/user/domains/home_assistant/haos_ova-6.0.vmdk /mnt/user/domains/home_assistant/haos_ova-6.0.qcow2   Change the path to your new disk in your VM Change the type from raw to qcow2 in your VM <driver name='qemu' type='qcow2' cache='writeback'/> <source file='/mnt/user/