sudo sh /PATH/TO/bin/startxfce4 -r DISTRO
sudo sh -e ~/Downloads/crouton -r DISTRO -t xiwi,ENVIRONMENT -p '/media/removable/NAME OF DRIVE'
#example: Ubuntu 16.04LTS
sudo sh -e ~/Downloads/crouton -r xenial -t core,xiwi,extension,audio,cli-extra,keyboard,x11 -p '/media/removable/EXTDRIVE'
croutonversion -ud
sudo sh -e ~/Downloads/crouton -u -n DISTRO -p /media/removable/NAME_OF_DRIVE/