Re: ORA-00205: error in identifying control file,

From: David Fitzjarrell <oratune_at_yahoo.com>
Date: Fri, 24 Aug 2012 07:24:45 -0700 (PDT)
Message-ID: <1345818285.95477.YahooMailNeo_at_web121602.mail.ne1.yahoo.com>



You should probably start the database nomount then create a new controlfile with the create controlfile command; from your 10.2.0.4 database you can generate a basic script to do this by issuing the following command at the SQL> prompt:
 

alter database backup controlfile to trace; Edit the resulting script to open the database resetlogs then run it after a startup nomount.
 

David Fitzjarrell

From: Nisha Mohan <NishaMohan_A_at_infosys.com> To: "oracle-l_at_freelists.org" <oracle-l_at_freelists.org> Sent: Friday, August 24, 2012 5:19 AM
Subject: ORA-00205: error in identifying control file,

Hi,
I am doing a manual upgrade from 10.2.04 to 11.2.03. I have installed 11.2.0.3.
Ran utlu112i.sql
Copied TNSNAMES and LISTENER.ora,init.ora from 10g home to 11g home respective directories. Commented all dump_dest paramteres in 11g init.ora and added diagnostic_dest parameter

exported all the varaiables as follows.

export ORACLE_HOME=/oracle/ora11203
export PATH=$ORACLE_HOME/bin:$PATH
export ORACLE_SID=OMIGTEST
export TNS_ADMIN=$ORACLE_HOME/network/admin export ORACLE_BASE=/oracle/ora11203/app/ora11203 export LD_LIBRARY_PATH=/oracle/ora11203/lib:/usr/local/lib

Now when i try to start DB from the unix session where all of above variables are set,i am getting following issue.

sqlplus '/as sysdba'

SQL*Plus: Release 11.2.0.3.0 Production on Thu Aug 23 16:22:16 2012

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> startup upgrade
ORACLE instance started.

Total System Global Area 1636892672 bytes Fixed Size                  2183056 bytes Variable Size            1090519152 bytes Database Buffers          536870912 bytes Redo Buffers                7319552 bytes ORA-00205: error in identifying control file, check alert log for more info

The following entry is present in init.ora.If I keep this entry or comment it out,Iam getting same issue.

control_files    = (/oracle/ora11203/dbs/ctrl_1_OMIGTEST.ctl)

Do i copy control file from 10g home and place in in 11g path and mention it in init.ora before upgrade?

Thanks and Regards,
Nisha Mohan.A

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Received on Fri Aug 24 2012 - 09:24:45 CDT

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