Error message to do upgrade 7.1.3 to 8.6.2 CUCM in VMWare 4.1 ESXi
I installed the VMWare 4.1 in a one Server UCS C210. After this install I did the installation CUCM version 7.1.3 and didn´t had problem. When I Tried to do the upgrade I received the message error: "Error encountered: The selected upgrade is disallowed from the current version". I Verified the matrix compatibility and saw that is possible to do this upgrade.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.