Physical 8.6.2 to Virtual 9.1.2 - CUCM/UCXN Clusters
I have both a CUCM and UCXN cluster on MCS at 8.6.2 that I am migrating to UCS VM's with an endpoint of 9.1.2.
Do i need to migrate both the pub and sub of each cluster, or can I for each cluster migrate the pub (DRS backup/restore) at 8.6.2, then delete the sub on the migrated pub, re-ip address the pub, upgrade to 9.1.2, then add a new 9.1.2 sub, eliminating the need to do a restore/re-ip/upgrade on the sub?
This question is for both CUCM and UCXN. UCXN messages would be moved from the 8.6.2 to 9.1.2 on cut over day with COBRAS.
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.