===== Link =====
Found the instructions [[https://www.raspberrypi.org/forums/viewtopic.php?t=44177|here]].

===== Content =====
Write the image to the SDCard, then write the same image to the USB stick. Insert both, boot from SDCard, and confirm that the USB stick shows up as /dev/sda

  lsblk

Then edit the boot config

  nano /boot/cmdline.txt

Change **root=/dev/mmcblk0p2** to **root=/dev/sda1**