Hello,
SAP: SAP ERP 6.0
DB: Oracle 10.2g
OS: Windows Server 2003 X64
I´m doing an update (Patch Set Update) to our oracle database from the version 10.2.0.2 to 10.2.0.5.
I´m following the readme file that is inside of oracle 10.2.0.5 media. I ran the Oracle Universal Installer and it finished with a successfully message as you can see in the following image:
So... as you may know, the second phase I need to run the DBUA, this is, next to this task I must run the Oracle Database Upgrade Assistant (DBUA) wizard to complete the oracle update activity and is in that specific task/wizard that I´m facing one error... I weird error.
I start well the DBUA wizard, without problems... and it show me the following:
... the error ORA-01507: database not mounted
ORA-01507: database not mounted
DBUA thinks this is a Rerun operation and is trying to connect to the database with oracle home E:\oracle\PRD\102. If you believe this is not a Rerun operation, remove the below file and invoke DBUA again.
E:\oracle\PRD\102\cfgtoollogs\dbua\logs\Welcome_PRD.txt
I tried to find that specific file that is mentioned in the error message (Welcome_PRD.txt) in that specific location but unfortunately I don´t see that file in that specific path 
. I only see two files, sqls.log and trace.log!
The database services are started:
I went to SQL Plus and I ran some commands (such as select * from v$database; SELECT * from v$version; select status from v$instance;) and this is the output of them:
So... can you help me please in way to understand what´s the problem and how to overcome this error, because I need to run the DBUA to finish the oracle Patchset update (10.2.0.2 to 10.2.0.5)!
Can you help me please? Thank you
Best regards,
João Dimas