SHA256(ubuntu-ova.ovf)= 768817139519738f173f3c7dafe0c70c5acad0f709d3f64068f632d5163f39d4
SHA256(ubuntu-ova-disk1.vmdk)= f88bc430039f55455b40e2aab87e8d9660815575c670756df49fedc544dd0ae7