Best,
I would like to install Home Assistant via Putty.
Now I have put Raspbian Buster Lite on an SD, this is now in my pi 4. I have followed the manual of Home Assistant, but now I do not get a 404 page and once I close Putty, the page can no longer be found found it.
The 404 error is a known bug. Stop Home Assistant and do the following:
sudo -u homeassistant -H -s
source /srv/homeassistant/bin/activate
pip install home-assistant-frontend
Unfortunately, as soon as I close Putty, Home Assistant does not work either.
Because you didn’t set it up as a service as the instructions tell you. When you run the command hass it is running the software. When you close the session, that command stops running. Set up the autostart for it, per the documentation.
I want to do that, but it sticks, this can also be seen on the last print screen.
I don’t see any screens where you created a service file and setup systemd.
Have a look here.
Given your struggles, you may want to consider the (deprecated) Hassbian install which will give you Raspbian + Home Assistant as a pre-packaged install, or maybe use the alternative Hass.io install option.
If they don’t use hassio, I foresee a future post saying “Where is the hassio menu?”