I'm still in the process of installing but here's a quick list.
- Install GP 2013 and upgrade the databases and register. We do this to a new SQL Server.
- Install Web Services and upgrade the Web Service database on the SQL Server.
- Add the users to Web Services (WS) roles.
- We use a separate Portal install account so that needs to be a WS Poweruser and BDC Administrator (add to Roles).
- Verify that WS is reachable from the SP server.
- Drop any firewalls between the SP server and the GP SQL server.
- Install SharePoint 2010 Foundation (again new server) and configure the site.
- Add a top-level web application and site collection (we will install Portal there.)
- Add a Business Data Catalog (BDC) Service Application (you might have to turn the service on.)
- Backup your SP site from Central Admin and SQL Server.
- Install Business Portal.
I can see most of the requisition information in Portal. But I have a "Server error in '/' Application" on the Hierarchy page. Working with support to clear that up.