bash-3.2$ sqlplus / as sysdba

SQL*Plus: Release 10.2.0.4.0 - Production on Thu Dec 16 13:52:12 2010

Copyright (c) 1982, 2007, Oracle.  All Rights Reserved.

Connected to an idle instance.

SQL> startup;
ORACLE instance started.

Total System Global Area 3221225472 bytes
Fixed Size                  2087480 bytes
Variable Size            2550138312 bytes
Database Buffers          654311424 bytes
Redo Buffers               14688256 bytes
ORA-00205: error in identifying control file, check alert log for more info


SQL> 






bash-3.2$ rman target /

Recovery Manager: Release 10.2.0.4.0 - Production on Thu Dec 16 13:50:35 2010

Copyright (c) 1982, 2007, Oracle.  All rights reserved.

connected to target database: ATESTE (not mounted)

RMAN> set dbid=558374056;

executing command: SET DBID

RMAN> restore database preview;

Starting restore at 16-DEC-10
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=1586 devtype=DISK
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of restore command at 12/16/2010 13:51:06
ORA-01507: database not mounted

RMAN>