Try lvm

src/freedombone-image-customise

     fi
 
     if [[ $ARCHITECTURE == 'qemu'* || $ARCHITECTURE == 'amd64' || $ARCHITECTURE == 'x86_64' || $ARCHITECTURE == 'i686' || $ARCHITECTURE == 'i386' ]]; then
-        chroot "$rootdir" apt-get -yq install grub2
+        chroot "$rootdir" apt-get -yq install grub2 lvm2
     fi
 
     chroot "$rootdir" apt-get -yq install locales locales-all debconf
 chroot "$rootdir" apt-get install -y locales locales-all debconf wireless-tools wpasupplicant usbutils
 if [[ $ARCHITECTURE == 'qemu'* || $ARCHITECTURE == 'i386' || $ARCHITECTURE == 'i686' || $ARCHITECTURE == 'amd64' || $ARCHITECTURE == 'x86_64' ]]; then
     chroot "$rootdir" apt-get install -y cryptsetup zsh pinentry-curses iotop bc
-    chroot "$rootdir" apt-get install -y grub2 hostapd
+    chroot "$rootdir" apt-get install -y grub2 hostapd lvm2
 fi
 
 sed -i "s|#host-name=.*|host-name=${LOCAL_NAME}|g" $rootdir/etc/avahi/avahi-daemon.conf

src/freedombone-utils-setup

     apt-get -yq install cpulimit screen
 
     if [[ $ARCHITECTURE == 'qemu'* || $ARCHITECTURE == 'amd64' || $ARCHITECTURE == 'x86_64' || $ARCHITECTURE == 'i686' || $ARCHITECTURE == 'i386' ]]; then
-        apt-get -yq install grub2
+        apt-get -yq install grub2 lvm2
     fi
 
     if [ ! -d $INSTALL_DIR ]; then