Try to avoid user interaction on installing tripwire

src/freedombone

   apt-get -y autoremove
   cd /etc/tripwire
   cp site.key $DEFAULT_DOMAIN_NAME-site.key
-  echo ''
-  echo ''
-  echo '*** Installing intrusion detection. Press Enter when asked for the local and site passphrases. ***'
-  echo ''
-  echo ''
-  tripwire --init
+  echo '*** Installing intrusion detection ***'
+  echo '
+
+' | tripwire --init
 
   # make a script for easy resetting of the tripwire
   echo '#!/bin/sh' > /usr/bin/reset-tripwire