I have an Ultrium LTO-4, and cannot get it to work with Amanda.

[amandabackup@localhost ~]$ amlabel WeeklySet1 Weekly-01
Reading label...
Can't open tape device /dev/nst0: Bad file descriptor
amlabel: Could not open device tape:/dev/nst0.


Here is pertinent section of my /etc/amanda/WeeklySet1/amanda.conf:

runtapes 1                      # number of tapes to be used in a single run of amdump
#tpchanger "chg-disk"           # the tape-changer glue script
#tapedev "file://data/amanda/vtapes/DailySet1/slots"
#tpchanger "chg-manual"         # the tape-changer glue script
tapedev "tape:/dev/nst0"        # the no-rewind tape device to be used

#changerfile "/etc/amanda/DailySet1/changer"
#changerfile "/etc/amanda/DailySet1/changer-status"
#changerfile "/etc/amanda/WeeklySet1/changer.conf"
#changerdev "/dev/null"

#tapetype HARDDISK
#tapetype HP-DAT                # what kind of tape it is (see tapetypes below)
tapetype LTO-4

define tapetype LTO-4 {
    comment "ULTRIUM LTO-4, compression off"
    length 770048 mbytes
    filemark 0 kbytes
    speed 73040 kps
}




*** Note that the tapetype was derived from doing the amtapetype command.

Thanks in advance for your help.