install HA

#Become the new user (When acting as the user "homeassistant" sudo is not needed).
sudo su -s /bin/bash homeassistant

#setup the new virtual environment
virtualenv -p python3 /srv/homeassistant

#Activate the virtual environment (After that, your prompt should include (homeassistant)).
source /srv/homeassistant/bin/activate

#Install home assistant!
pip3 install --upgrade homeassistant

#Run command (to logout from the user)
exit

#Test that HA is working
sudo -u homeassistant -H /srv/homeassistant/bin/hass