ebrian,

Thanks, Now I can start the Listener. (Oh god, that was so obviouse!)

But I got another problem when I tried to login with the sys user like this:
"sys@testDb as sysdba"

The error is:

ORA-12641: Authentication service failed to initialize

I turned on sqlnet tracing by adding the lines bellow to the sqlnet.ora:

TRACE_TIMESTAMP_SERVER = ON
TRACE_LEVEL_SERVER = 16
TRACE_UNIQUE_SERVER = ON

and what I found in the Trace file was:

/u01/app/oracle/admin/testDb/udump/testdb_ora_13823.trc
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options
ORACLE_HOME = /u01/app/oracle/product/10.2.0/oraHome
System name: Linux
Node name: TestSys
Release: 2.6.11-1.1369_FC4
Version: #1 Thu Jun 2 22:55:56 EDT 2005
Machine: i686
Instance name: testDb
Redo thread mounted by this instance: 1
Oracle process number: 15
Unix process pid: 13823, image: oracletestDb@TestSys

opiino: Attach failed! error=-1 ifvp=(nil)

I can login with OS user as sysdba (/ as sysdba). So I think it's about the sys user.
I use password file. I've even created it again. Didn't work.

Dose anyone underestand anything from that error?

Thanks in Advance
Amir Gheibi