3708650 - DB6: SQL0551N Authorization ID: "DB2<SID>". Operation: "EXECUTE". Object: "SYSPROC.ENV_GET_REG_VARIABLES". - DB2CKUPGRADE/DB2IUPGRADE

During db2iupgrade, the db2iupgrade.log.xxx.txt reports the following errors.  The upgrade.log must be checked to retrieve the actual error. 

DB2 Setup log file started at: <date/timestamp>
============================================================

Operating system information: <OS version>
                                        
                                        
Existing instances to configure:      db2<sid>
        Instance user information:          
            User name:                      db2<sid>
        Fenced user information:            
            User name:                      db2<sid>
                                        
                                        
                                                                              

Setting default global profile registry variables :.......Success 
Initializing instance list :.......Success 
ERROR: An error occurred while upgrading the instance "db2<sid>". The return value is "1". If the problem persists contact your technical service  representative.

ERROR: DBI1205E  One or more local databases cannot be upgraded to the version from which you are running this command.
Check the log file /db2/db2<sid>/upgrade.log for the list of errors.

=>

ERROR: An error occurred while configuring the instance "db2<sid>".

Configuring DB2 instances :.......Failure 
Updating global profile registry :.......Success 

Post-installation instructions 
-------------------------------

/db2/db2<sid>/upgrade.log 

SQL0551N Authorization ID does not have required authorization Authorization ID: "DB2<SID>"
Operation: EXECUTE
Object: SYSPROC.ENV_GET_REG_VARIABLES

Db2 LUW IBM

upgrade, failure, success, utility, database, global profile registry variables, first steps, validate your installation files, instance, and database functionality, , KBA , BC-DB-DB6 , DB2 Universal Database for Unix / NT , Problem