SHA256(ubuntu-ova.ovf)= 14290e19d838f3043af82364de65e0049ef9c74873e0d3047ae72c254a969dbc
SHA256(ubuntu-ova-disk1.vmdk)= 666f5e142eb497253c7e52fa3f1610ab1453b3172fc5f890943c78fcf087e0d4