rman - noarchivelog db - recover noredo

I encountered few issues while restoring a rman backup when the db is running in noarchivelog mode (i think the online redolog's availability has some influence on the rman backup restore strategy ) . so to be on a safeside I implemented the backup strategy with incremental backup for noarchivelog db. this one I tested on 10.2.0.2

Here is the backup script

============================
script rman_noarch_backup.rcv # ##########
SHUTDOWN IMMEDIATE;
STARTUP FORCE DBA;
SHUTDOWN IMMEDIATE;
STARTUP MOUNT;
BACKUP
COPIES 1
INCREMENTAL LEVEL 0
MAXSETSIZE 1G
DATABASE
INCLUDE CURRENT CONTROLFILE
TAG 'BACKUP_1'
;
alter database open;
#########################################

and the restore operation is as below

vmtest:/export/home/oracle$ rman target /
RMAN> SET DBID 1177027667
executing command: SET DBID
RMAN> startup nomount;

RMAN> restore controlfile from '/export/home/oracle/flash_recovery_area/ORCL/backupset/2008_03_13/o1_mf_ncnn0_BACKUP_1_3xmdomv3_.bkp';

RMAN> alter database mount;

RMAN> run{
restore database;
recover database noredo;
}

RMAN> alter database open resetlogs;

database opened