ORA-00333: redo log read error block 65538 count 8192

Question

Hi,
I wanted to alter user hr's password, but I couldn't open the database first. What should I do? Here is my demo: Thank you for your response.
C:\>sqlplus /nolog
SQL*Plus: Release 9.2.0.1.0 - Production on Sun May 16 12:12:43 2004
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
SQL> connect sys/oracle as sysdba
Connected.
SQL> show user
USER is "SYS"
SQL> select * from v$controlfile;
STATUS
NAME
C:\ORACLE\ORADATA\SARAH\CONTROL01.CTL
C:\ORACLE\ORADATA\SARAH\CONTROL02.CTL
C:\ORACLE\ORADATA\SARAH\CONTROL03.CTL
SQL> select * from dba_users;
select * from dba_users
ERROR at line 1:
ORA-01219: database not open: queries allowed on fixed tables/views only
SQL> alter database open;
alter database open
ERROR at line 1:
ORA-00333: redo log read error block 65538 count 8192
SQL> desc v$instance
Name Null? Type
INSTANCE_NUMBER NUMBER
INSTANCE_NAME VARCHAR2(16)
HOST_NAME VARCHAR2(64)
VERSION VARCHAR2(17)
STARTUP_TIME DATE
STATUS VARCHAR2(12)
PARALLEL VARCHAR2(3)
THREAD# NUMBER
ARCHIVER VARCHAR2(7)
LOG_SWITCH_WAIT VARCHAR2(11)
LOGINS VARCHAR2(10)
SHUTDOWN_PENDING VARCHAR2(3)
DATABASE_STATUS VARCHAR2(17)
INSTANCE_ROLE VARCHAR2(18)
ACTIVE_STATE VARCHAR2(9)
SQL> select instance_name, status from v$instance;
INSTANCE_NAME STATUS
sarah MOUNTED
SQL>
*******************************

Answer 1

I did what Prabhu told me..But i recovered using backup controlfile and when i was asked to apply logs..i applied my oldest logs and it worked
Like i have two groups with two members each
I applied log1a.dbf and it said media recovery completee
I opened the database But then it started giving me errors for undo tablespace
I made another undo tablespace..tried dropping the old one but it did not permitted as it had some segments with status "needs recovery"
Than i added this parameter in pfile with the correupted segment and than tried to drop the segment but it still did not permit
corruptedrollback_segments =(corrupted_undo segment_name)
Next what i did was I mounted the database, ran another session of media recovery and opened the databse using resetlogs
Than i dropped the old undo and it went through successfully..
If you think anything i did wrong than please advice..
I hope this action plans helps you in case you come across same errors some day
I would be very thankful if you can refer me a document of recovery which covers all kinds of recoveries and scenarios and commands too
Thanks alot