Move the VMX file to a different data store whose block size supports the size of VMDK for that virtual machine.A new feature in virt-v2v 1.37.10 is the ability to import VMware guests directly from disk storage. vmx files Virt-v2v converts guests from VMware to KVM, installing any necessary virtio drivers to make the guest work optimally on KVM. To modify the settings of a virtual machine, login to Web Client and select VM from the inventory and navigate to Manage > Settings > VM Options > Advanced settings and click on Edit. To do so the VM needs to be in powered-off state. When we edit the virtual machine settings from Web Client, those settings are written in vmx file of the vm.