Make a backup of your current VIVO source directory
Make a backup of your current VIVO relational database
If different from your relational database, make a backup of your current VIVO triple store
Copy these backup files to your new machine
Create the vivo database, using the same username and password as the previous machine
Load the relational database from the backup
If you're installing everything into the same place that they were installed on the original machine, then there are no configuration changes to be made
Otherwise, you'll need to modify your *.properties files, changing any paths necessary
If you're your relational database and triple store information are the same as before (same graphs, same usernames, same passwords), then there are no configuration changes to be made
Otherwise, you'll need to modify your *.properties files, changing any username and password information for relational and semantic stores
Make sure tomcat is NOT running prior to building and installing VIVO
Build and install VIVO
Start tomcat
And that should be it.
Info
*.properties files:
Prior to VIVO 1.6, this is the deploy.properties file in the VIVO source directory.
In VIVO 1.6 and later, this is the build.properties file in the VIVO source directory, and the runtime.properties file in the VIVO home directory.