I was able to get this working without the need to use the ciscocm.cup.pe_db_install.cop file.  I reverted the system back to 8.6(3) and even though the services wouldn't start, the database was intact.  I installed the update to 8.6(4) with 4GB of R...

Paul,I'm experiencing the exact same issue.  Upgraded to 8.6(4) from 8.6(3).  At first, I didn't have enough RAM in the server, so it booted into bridge upgrade mode.  After I installed 4 GB of RAM, I am now stuck on a screen where the Service Activa...