On this page you will find instructions on how to write danuntu 
  (without kernel tarball version) on a sdcard or a USB drive using a 
  linux PC, a raspberry pi or a danuntu stick.
  Requisites:
  A PC with linux or a stick with danuntu or a raspberry pi.
  A class 10+ micro sdcard (class 6 should work but danuntu will be 
  extremely slow, especially on heavy desktops like kde or xfce), or a 
  USB drive. The size of the sdcard/USB drive must be at least 4 GB 
  (8 for danuntu to function properly). 
  The installation methods are the same for a linux pc, a raspberry pi 
  or danuntu, the only difference is that the Raspberry pi should have 
  installed one of the following operating systems: Raspbian, Pidora, 
  Arch Linux or OpenSUSE (or derivatives). The danuntu stick and 
  the Raspberry pi might also need a USB hub to plug in the USB 
  drive/sdcard.
  WARNING: DURING THE INSTALLATION PROCEDURE YOU 
  WILL HAVE TO CREATE A NEW PARTITION TABLE ON THE 
  SDCARD/USB DRIVE, AND BY DOING SO YOU WILL 
  PERMANENTLY DELETE THE CONTENTS OF THE 
  SDCARD/USB DRIVE! THE DELETED DATA WON’T GO IN THE 
  TRASH, IT WILL BE PERMANENTLY DELETED!
  I WARNED YOU!
  Method 1 is written only for ubuntu, debian, fedora, openSUSE 
  distros (and derivatives), raspberry Pis with either of the above 
  mentioned distros or danuntu sticks with a GUI, while method 2 is 
  written also for command line or pure-linux distros.
  Method 1.
  Method 2.