Database upgrade...

Last weekend I started the database upgrade from 10gr2 to 11gr1. As I mentioned before, I decided to manually upgrade the database. Before upgrading I already recieved an error.

[oracle@ebs2 admin]$ sqlplus /nolog
SQL*Plus: Release 11.1.0.6.0 - Production on Thu Apr 10 08:19:14 2008
Copyright (c) 1982, 2007, Oracle. All rights reserved.
SQL> conn / as sysdba
Connected to an idle instance.
SQL> startup upgrade
ORACLE instance started.
Total System Global Area 1071333376 bytes
Fixed Size 1304704 bytes
Variable Size 411043712 bytes
Database Buffers 645922816 bytes
Redo Buffers 13062144 bytes
Database mounted.
Database opened.
SQL> set echo on
SQL> spool upgrade.log
SQL> @catupgrd.sql
Upgrade error :
SQL> SELECT TO_NUMBER('MUST_BE_SAME_TIMEZONE_FILE_VERSION')
2 FROM registry$database
3 WHERE tz_version != (SELECT version from v$timezone_file);
SELECT TO_NUMBER('MUST_BE_SAME_TIMEZONE_FILE_VERSION')

*ERROR at line 1:
ORA-01722: invalid number

Have to upgrade the timezone to 4.

Current timezone :
SQL> select * from v$timezone_file;
FILENAME VERSION
------------ ----------
timezlrg.dat 2

To upgrade my timezone to version 4, I applied the following patches :
1. 5601428
2. 5746835
3. 5632264, NEED UPDATED TIMEZONE FILES (VERSION 4) FOR MORE DST RULE CHANGES

After upgrading the timezone I started teh upgrade again, and this time the catupgrd.sql went fine...
Today I will finish the database upgrade following metalink note 429825.1, Complete checklist for Manual Upgrade to 11gR1.