#1 Is Linux (Kernel 2.6) supported?

[Sang-Baek Lee]

I was trying to do local backup using ndmp and failed
dueto following messages.
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[root@MYHOST ndmjob]# ./ndmjob -c -D. -f/dev/st0
/home/ashuaria
failed open tape drive /dev/st0 read/write
[root@MYHOST ndmjob]# ./ndmjob -c -D. -f/dev/st0
/home/ashuaria -d 9
#D 0:00:00.000 C> NDMP4_MOVER_SET_RECORD_SIZE 1
#D 0:00:00.000 len=10240
#D 0:00:00.000 >R NDMP4_MOVER_SET_RECORD_SIZE 1 (2)
#D 0:00:00.000 error=NDMP4_NO_ERR
SESS 0:00:00.000 Opening tape drive /dev/st0 read/write
#D 0:00:00.000 C> NDMP4_TAPE_OPEN 3
#D 0:00:00.000 device='/dev/st0'
mode=NDMP4_TAPE_RDWR_MODE
SESS 0:00:07.266 op=NDMP4_TAPE_OPEN
err=NDMP9_NO_TAPE_LOADED_ERR why=tape_open
#D 0:00:07.266 >R NDMP4_TAPE_OPEN 3 (4)
#D 0:00:07.266 error=NDMP4_NO_TAPE_LOADED_ERR
#D 0:00:07.266 ERR NDMP4_TAPE_OPEN
NDMP4_NO_TAPE_LOADED_ERR
SESS 0:00:07.266 failed open tape drive /dev/st0 read/write
failed open tape drive /dev/st0 read/write
SESS 0:00:07.266 Complete
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what's wrong with it?
Did I do something wrong?