[C.D.O.S] How I run a shell script from the scheduler on 10.2.0.2.0 ?

Hello Oracle People,

I'd like to run a shell script from the Scheduler in my 10g database.

Right now it is a simple shell script.

Eventually it will wrap RMAN commands to back up my DB.

I wrote a simple pl/sql script to create a job:

--
cr_job10.sql

BEGIN
DBMS_SCHEDULER.CREATE_JOB (
   job_name             => 'my_backup_job',
   job_type             => 'EXECUTABLE',
   job_action           => '/h/oracle/scripts/tst.sh',
   start_date           => '06-SEP-07 5.33.00PM US/Pacific',
   repeat_interval      => 'FREQ=DAILY',
   end_date             => '08-SEP-07 4.00.00PM US/Pacific',
   enabled              =>  TRUE,
   comments             => 'My Backup Job');
END;
/

I see no errors when I run the above procedure.

I checked DBA_SCHEDULER_JOBS and the job is in there.

The scheduler, though, errors out with an error which I see in a trace
file:

/h/oracle/admin/orcl/bdump/orcl_j000_22396.trc
Oracle Database 10g Enterprise Edition Release 10.2.0.2.0 - Production
With the Partitioning, OLAP and Data Mining options
ORACLE_HOME = /h/oracle/product/10r2
System name:    SunOS
Node name:      sol
Release:        5.10
Version:        Generic_118855-14
Machine:        i86pc
Instance name: orcl
Redo thread mounted by this instance: 1
Oracle process number: 15
Unix process pid: 22396, image: oracle_at_sol (J000)



*** ACTION NAME:(MY_BACKUP_JOB) 2007-09-06 17:33:00.175

*** MODULE NAME:(DBMS_SCHEDULER) 2007-09-06 17:33:00.175

*** SERVICE NAME:(SYS$USERS) 2007-09-06 17:33:00.175

*** CLIENT ID:() 2007-09-06 17:33:00.175

*** SESSION ID:(140.13520) 2007-09-06 17:33:00.175

*** 2007-09-06 17:33:00.175

ORA-12012: error on auto execute of job 53267
ORA-27369: job of type EXECUTABLE failed with exit code: 274662

I googled on this:

ORA-27369: job of type EXECUTABLE failed with exit code: 274662

Google returned only 1 hit.

There, I see some evidence that I need to configure something inside
of Oracle to run shell scripts from the scheduler, but possibly just
for machines running windows.  I'm running Solaris.

Do any of you know what I need to configure inside of Oracle to
run shell scripts from the scheduler?

-Owen