grml-debootstrap 0.68.1 (arm64 binary) in ubuntu wily

 Provides a wrapper suite around debootstrap and cdebootstrap
 to ease installation of a pure Debian system.
 .
 Configuration can be done on the command line, in a dialog frontend
 or in /etc/debootstrap/config. You will get a pure Debian system
 installed on the specified device or directory, or directly into
 an image file suitable for Virtual Machine use.