I was upgrading my ESXi 4.0 Update 2 host to ESXi 4.1 with “VMware vSphere Host Update Utility”, I downloaded the “ESXi 4.1 (upgrade ZIP from ESXi 4.0)” file and selected this package to upgrade the host. After validating the upgrade package I received this error:
Failed to read the upgrade package metadata: Could not find file metadata.xml
I’ve checked the MD5 checksum.. it was correct.. I downloaded again the upgrade package from the VMware site.. still this warning..