I'm cloning an Oracle primary dataguard instance out of ASM and onto UFS. When I move it onto UFS I want to disable all standby activity and switch it to run as a regular DB. Before I restore the control files from the backup and move them to UFS I switch all the spfile params that ref dataguard e.g. alter system set dg_broker_start=FALSE scope=spfile; alter system set log_archive_config='' scope=spfile; alter system set log_archive_dest_1='LOCATION=/data/new_location alter system set log_archive_dest_2='' scope=spfile; alter system set log_archive_dest_state_1 = 'defer'; alter system set log_archive_dest_state_2 = 'defer'; alter system set log_archive_dest_state_3 = 'defer'; alter system set log_archive_dest_3='' scope=spfile; alter system set standby_archive_dest='' scope=spfile; alter system set standby_file_management=MANUAL scope=spfile; Then I restore the datafiles and arch logs to the new UFS locations. Switch datafile all; Rename the online redo. Afterwards I try to recover the DB to the latest scn. With regular DBs this works fine .. however with the RMAN backup set I get from the primary DG instance I get the following failure whenI try to 'alter database open resetlogs': RMAN-03002: failure of alter db command at 08/10/2012 10:02:39 ORA-01092: ORACLE instance terminated. Disconnection forced ORA-00704: bootstrap process failure ORA-39700: database must be opened with UPGRADE option The RDBMS & RHEL versions are the same on both source and target machines. Any ideas? I went ahead and upgraded the target DB using catupgrd.sql and it runs fine .. but that's not how it should work .. right? Many Thanks.