Lost control file, how to recover them

Hi All,
I have Oracle 11G running on RHEL 5.2 server and unexpectedly I can't start database after a server reboot. I have executed the following commands,
sqlplus /as sysdba
SQL> startup
ORA-01078: failure in processing system parameters
LRM-00109: could not open parameter file '/u01/app/oracle/product/11.2.0/db_1/dbs/inittestdb.ora'
SQL>
and then
SQL> startup pfile='/u01/app/oracle/admin/testdb/pfile/init.ora.1024201018143'
ORACLE instance started.
Total System Global Area 1269366784 bytes
Fixed Size          2212976 bytes
Variable Size          754977680 bytes
Database Buffers     503316480 bytes
Redo Buffers          8859648 bytes
ORA-00205: error in identifying control file, check alert log for more info
Here are the alert log messages,
ORA-00210: cannot open the specified control file
ORA-00202: control file: '/u01/app/oracle/oradata/testdb/control02.ctl'
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3
ORA-00210: cannot open the specified control file
ORA-00202: control file: '/u01/app/oracle/oradata/testdb/control01.ctl'
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3
ORA-205 signalled during: ALTER DATABASE MOUNT...
[oracle@trace]$ ls -l /u01/app/oracle/oradata/testdb
total 0
There are are no control files in the directory and I couldn't find them on the disk. Unfortunately, I do not have backups for dbs (this is a staging server). Is there any way we can recover those files or fix the problem ?
Could someone please help us on this?
Thanks

Mahesh Menon wrote:
[oracle@trace]$ ls -l /u01/app/oracle/oradata/testdb
total 0
He is not having any files in that location... not only control files, but the datafiles too.. in that case how is it possible ??? thats why I mentioned like that...
And yes, if the datafiles and redos are located in another location then we can recreate the controlfile.
But since it is a test system, I dont think there will be files in another location...
Please take it that I am not arguing with the GURUS and EXPERTS here..Well thought-out arguments are appreciated!
Perhaps the answer is to ls -l /u01/app/oracle/oradata
Maybe it's TESTDB or some for some other reason testdb really isn't the sid.
If it's a staging environment, where do things come from? If the data files are found on the staging server, but no controlfiles, perhaps alter database backup controlfile to trace on the source server might give something to work with.

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