Is there a different license that needs to purchased if going from Unified environment with Notes to Exchange? If one were to do this and licenses need to changed, etc is there a migration path for doing so?
The unity server itself, would best be completely wiped and re-installed from scratch for exchange right? Or can we just re-run msg store configuration and be fine?
You'll need a different license but your account team should be able to switch it out or you - I can speak to pricing out here (because I don't know about such things).
You'll have to reinstall - the Domino message configuration and directory stuff is a completely different ball of wax with the DUC interface and such. You can't just rerun the message store configuration wizard and be done with it.
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.