RMAN> shutdown immediate;

database dismounted
Oracle instance shut down

RMAN> startup nomount;

connected to target database (not started)
Oracle instance started

Total System Global Area    1845493760 bytes

Fixed Size                     1299988 bytes
Variable Size                176163308 bytes
Database Buffers            1660944384 bytes
Redo Buffers                   7086080 bytes

RMAN> restore database;

Starting restore at 09-APR-09
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=486 devtype=DISK
RMAN-00571: =====================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS =========
RMAN-00571: =====================================================
RMAN-03002: failure of restore command at 04/09/2009 14:59:38
ORA-01507: database not mounted

RMAN> alter database mount;

database mounted
released channel: ORA_DISK_1

RMAN> restore database;

Starting restore at 09-APR-09
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=486 devtype=DISK

RMAN-00571: =====================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS =========
RMAN-00571: =====================================================
RMAN-03002: failure of restore command at 04/09/2009 15:00:01
RMAN-06026: some targets not found - aborting restore
RMAN-06100: no channel to restore a backup or copy of datafile 41
RMAN-06100: no channel to restore a backup or copy of datafile 40
RMAN-06100: no channel to restore a backup or copy of datafile 39
RMAN-06100: no channel to restore a backup or copy of datafile 38
RMAN-06100: no channel to restore a backup or copy of datafile 37
RMAN-06100: no channel to restore a backup or copy of datafile 36
RMAN-06100: no channel to restore a backup or copy of datafile 35
RMAN-06100: no channel to restore a backup or copy of datafile 33
RMAN-06100: no channel to restore a backup or copy of datafile 32
RMAN-06100: no channel to restore a backup or copy of datafile 31
RMAN-06100: no channel to restore a backup or copy of datafile 30
RMAN-06100: no channel to restore a backup or copy of datafile 29
RMAN-06100: no channel to restore a backup or copy of datafile 28
RMAN-06100: no channel to restore a backup or copy of datafile 27
RMAN-06100: no channel to restore a backup or copy of datafile 26
RMAN-06100: no channel to restore a backup or copy of datafile 25
RMAN-06100: no channel to restore a backup or copy of datafile 24
RMAN-06100: no channel to restore a backup or copy of datafile 23
RMAN-06100: no channel to restore a backup or copy of datafile 22
RMAN-06100: no channel to restore a backup or copy of datafile 21
RMAN-06100: no channel to restore a backup or copy of datafile 20
RMAN-06100: no channel to restore a backup or copy of datafile 19
RMAN-06100: no channel to restore a backup or copy of datafile 18
RMAN-06100: no channel to restore a backup or copy of datafile 17
RMAN-06100: no channel to restore a backup or copy of datafile 16
RMAN-06100: no channel to restore a backup or copy of datafile 15
RMAN-06100: no channel to restore a backup or copy of datafile 14
RMAN-06100: no channel to restore a backup or copy of datafile 13
RMAN-06100: no channel to restore a backup or copy of datafile 12
RMAN-06100: no channel to restore a backup or copy of datafile 11
RMAN-06100: no channel to restore a backup or copy of datafile 10
RMAN-06100: no channel to restore a backup or copy of datafile 8
RMAN-06100: no channel to restore a backup or copy of datafile 6
RMAN-06100: no channel to restore a backup or copy of datafile 5
RMAN-06100: no channel to restore a backup or copy of datafile 4
RMAN-06100: no channel to restore a backup or copy of datafile 3
RMAN-06100: no channel to restore a backup or copy of datafile 2
RMAN-06100: no channel to restore a backup or copy of datafile 1

RMAN-06100: no channel to restore a backup or copy of datafile %d
 *Cause:  A datafile, tablespace, or database restore could not proceed
          because the backup of the indicated file exists on a device type
          that was not allocated for restore.
 *Action: None - this is an informational message.  See message 6026 for
          further details.

RMAN-06026: some targets not found - aborting restore
 *Cause:  Some of the files specified for restore could not be found.
          Message 6023, 6024, or 6025 is also issued to indicate which
          files could not be found.  Some common reasons why a file
          can not be restored are that there is no backup
          or copy of the file that is known to recovery manager, or
          there are no backups or copies that fall within the criteria
          specified on the RESTORE command, or some datafile copies have
          been made but not cataloged.
 *Action: The Recovery Manager LIST command can be used to display the
          backups and copies that Recovery Manager
          knows about.  Select the files to be restored from that list.

Rman>backup database plus archivelog;
Starting backup at 10-APR-09
current log archived
using target database control file instead of recovery catalog
allocated channel: [B]ORA_DISK_1[/B]
channel ORA_DISK_1: sid=414 devtype=DISK
skipping archive log file E:\ORACLE\FLASH_RECOVERY_AREA\NGS1\ARCHIVELOG\2009_04_
01\O1_MF_1_310_4X7O876J_.ARC; already backed up 1 time(s)
skipping archive log file E:\ORACLE\FLASH_RECOVERY_AREA\NGS1\ARCHIVELOG\2009_04_
01\O1_MF_1_311_4X7WHQK7_.ARC; already backed up 1 time(s)
skipping archive log file E:\ORACLE\FLASH_RECOVERY_AREA\NGS1\ARCHIVELOG\2009_04_
01\O1_MF_1_312_4X7ZVPLZ_.ARC; already backed up 1 time(s)
skipping archive log file E:\ORACLE\FLASH_RECOVERY_AREA\NGS1\ARCHIVELOG\2009_04_
01\O1_MF_1_313_4X89F5FH_.ARC; already backed up 1 time(s)
skipping archive log file E:\ORACLE\FLASH_RECOVERY_AREA\NGS1\ARCHIVELOG\2009_04_
02\O1_MF_1_314_4X8MNBCW_.ARC; already backed up 1 time(s)
[I]channel ORA_DISK_1:[/I] starting piece 1 at 10-APR-09