SHA256(ubuntu-ova.ovf)= c9441366d2a00413c0f72e6f6ca698b6372652449db8d84237e1b7770a13ec88
SHA256(ubuntu-ova-disk1.vmdk)= 169b606ea298c0674dc1ce4a3c9564da47d4bbc7b19bc74698471b0c1f524f35