vCenter 7.0 Update Issues
Patching the vCenter Server Appliance in vSphere 7.0 has become a lucky bag. When you try to update using the vCenters VAMI, you either have greyed out STAGE ONLY and STAGE AND INSTALL buttons:
The installation fails with "Exception occurred in install precheck phase" errors, rendering the VAMI unusable:
Or the installation gets stuck on Downloading RPM vsphere-ui-[version].rpm: