Если вы используете виртуальную машину и устанавливаете ubuntu VM

#you must be using Ubuntu on vm because you don't want to override ubuntu on your os 
#Try Ubuntu or install Ubuntu 
#try ubuntu:- will be a live image of Ubuntu on the vm only 

#install Ubuntu:- will override your full oprating system with ubunt
#Now it's your choise that you choose Try Ubuntu or install Ubuntu 
Programmer of empires