Unable to find archived log

Question

Hi
I am restoring a hot backup taken through RMAN using following commands:
configure controlfile autobackup on;
BACKUP DATABASE ;
BACKUP ARCHIVELOG ALL DELETE INPUT;
Now I am going to restore that using following commands:
restore spfile from autobackup;
restore controlfile from autobackup;
shutdown immediate;
startup mount;
restore database;
RECOVER DATABASE;
ALTER DATABASE OPEN RESETLOGS;
But it goes fine till restore database. At recover database I get following errors:
archived log for thread 1 with sequence 2461 is already on disk as file /u01/app/oracle/fast_recovery_area/XE/onlinelog/o1_mf_1_8fbs9bvt_.log
archived log for thread 1 with sequence 2462 is already on disk as file /u01/app/oracle/fast_recovery_area/XE/onlinelog/o1_mf_2_8fbs9chb_.log
unable to find archived log
archived log thread=1 sequence=545
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of recover command at 09/11/2013 20:41:43
RMAN-06054: media recovery requesting unknown archived log for thread 1 with sequence 545 and starting SCN of 25891726
I have checked the backup folder and there are only empty date wise folders under archivedlog folders.
If I write RMAN> ALTER DATABASE OPEN RESETLOGS; I get:
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of alter db command at 09/11/2013 20:43:01
ORA-01190: control file or data file 1 is from before the last RESETLOGS
ORA-01110: data file 1: '/u01/app/oracle/oradata/XE/system.dbf'
If I write RMAN> recover database until sequence 545; I get
Starting recover at 11-SEP-13
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=695 device type=DISK
starting media recovery
unable to find archived log
archived log thread=1 sequence=545
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of recover command at 09/11/2013 21:09:34
RMAN-06054: media recovery requesting unknown archived log for thread 1 with sequence 545 and starting SCN of 25891726
I don't mind if some data is lost. Will be really thankful if someone can help me get my database open;
Habib

Answer 1

They way you are trying to recover will try to recover up to the last know SCN. Try to do a point in time recover up to a few minutes before the database was shutdown or crashed.
Try something like this
run{
set until time "to_date('2013-09-11:00:00:00', 'yyyy-mm-dd:hh24:mi:ss')";
restore spfile from autobackup;
restore controlfile from autobackup;
shutdown immediate;
startup mount;
restore database;
RECOVER DATABASE;
ALTER DATABASE OPEN RESETLOGS;