SHA256(ubuntu-ova.ovf)= ee331c7752d21ec42e86d0d3d273746c2983e7b8c18d42a67232178bb532fc44
SHA256(ubuntu-ova-disk1.vmdk)= 343a9de71ad7ecf162b24fcdf5a0ab93fb5d7401475d17ce64d960801d59c85f