Finishing an upgrade project after being a while since doing one, I wanted to take the time to share the experience and how easy has Cisco made it into upgrading their software.
It may look a bit disorganized, but you will find few things that I used to refresh my memory on the process, but I found that it was a surprisingly less painful than before. Now, one thing I like to mention is the fact that this is still a Refresh Upgrade because of the change on the REHL version of CUCM, but the Refresh Upgrade COP is not needed, note that the previous version is 9.x.
I only used:
Keys.3.COP fileVMWare COP File
Then modified the .vmx file on VMWare and the settings on the VM
Initiated the Upgrade and everything worked as expected for more details keep reading, you will find the handy note I used to keep sanity in check.
For the details on the process you can find the following links useful
About the Author:
Andres Sarmiento, CCIE # 53520 (Collaboration)
With more than 13 years of experience, Andres is specialized in the Unified Communications and Collaboration technologies. Consulted for several companies in South Florida, also Financial Institutions on behalf of Cisco Systems. Andres has been involved in high-profile implementations including Cisco technologies; such as Data Center, UC & Collaboration, Contact Center Express, Routing & Switching, Security and Hosted IPT Service provider infrastructures.