ORA-00205: error in identifying control file,

  • From: Nisha Mohan <NishaMohan_A@xxxxxxxxxxx>
  • To: "oracle-l@xxxxxxxxxxxxx" <oracle-l@xxxxxxxxxxxxx>
  • Date: Fri, 24 Aug 2012 11:19:51 +0000

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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