I dont see any issue for using catupgrd.sql you had any issue in past using catupgrd.sql especially for performance issue like this..As updated by srini Oracle Always recommends to use DBUA for all your database upgrades. I also had been involved in so many version of database upgrades in apps 11i and R12 upgrades from 9i to 10g to 11gr1 to 11gr2 . I also used DBUA as my upgrade procedure and it completed without any issues.
I dont have any issue on running catupgrd.sql or DBUA. The issue is database startup migrate its took long time after upgrade also it took 40 min to open . There is no recovery is going on..What is the size of your database and number of invalid objects in db?
Completed: ALTER DATABASE MOUNTYes it's rather strange.
Fri Feb 11 20:46:35 2011
Completed: ALTER DATABASE OPEN MIGRATE
Fri Feb 11 21:47:15 2011