Updating OpsCenter Agent in a local Zone

Hey there,

i've tried to update OpsCenter Agent on a local Solaris 10 Zone. The Install script 7.5.0.6 exited with the following Error:

CPI ERROR V-9-2-1029 Installation on or from local zones is not supported.

Version 7.5 is already installed. Why is an update not supported?

Best Regards

Nils