Yes. The upgrade process does not depend on the other system running to do the upgrade. Here is the basic process.
- Shut down the current system. It should never need to be turned on again.
- Export the database
- Export the LDAP
- Install the new system (with it's own database)
- Start it up and make sure it functions.
- Shut down the new system.
- Copy over any customizations and property changes (rbinfo, etc.)
- Import the old database on top of the new one
- Import the old LDAP. It will get merged with the new one.
- Run the upgrade tool. This goes through and converts the old database to work with the new install.
The Windchill install is very much folder centric. You can simply install the new version in a new folder. If you don't want the old install anymore, simply delete the folder.
I'm sure there are some nuances I'm missing, but I think that's the bulk of it.
Tom