I have a server running esxi 3.5 free which I want to upgrade to esxi 4 u2 (registered vsphere foundation).
I want to use the Host Update Utility to perform this task but I get the folowwing error when the package is checked :
Upgrade package validation failed, Failed to read the upgrade package metadata; incorrect input string format.
I am using Utility version 4.0.0 build 258672 with update package upgrade-from-esxi3.5-4.0_update02-261974.zip.
I downloaded it several times in case of file corruption with no success.
Any help welcome!