install kpartx on debian

src/freedombone-image

             sudo apt-get -yq install git python-docutils mktorrent xz-utils debootstrap
             sudo apt-get -yq install dosfstools btrfs-tools extlinux python-distro-info mbr
             sudo apt-get -yq install qemu-user-static binfmt-support u-boot-tools qemu
-            sudo apt-get -yq install python-cliapp
+            sudo apt-get -yq install python-cliapp kpartx
             sudo cp /sbin/install-mbr /usr/bin/install-mbr
             ;;
         parabola|arch)