Running amtapetype yields:

opt/amanda/sbin# ./amtapetype -f /dev/nst1
Can't locate object method "new" via package "Amanda::Header" at
./amtapetype line 307.

Compiled on:

Distributor ID: Debian
Description:    Debian GNU/Linux 4.0 (etch)
Release:        4.0
Codename:       etch

Kernel 2.6.26.5-i686-64-smp

Configured with:

./configure                                 \
--prefix=/opt/amanda                        \
--with-tmpdir=/var/tmp/amanda               \
--with-amperldir=/opt/amanda/perl           \
--with-config=up                            \
--with-user=amanda                          \
--with-group=disk                           \
--with-bsdtcp-security                      \
--with-amandahosts                          \
--with-tape-device=/dev/nst0                \
--with-changer-device=/dev/changer          \
--with-tape-server=grumpy                   \
--with-index-server=grumpy

Thanks!
jf