so test some more time, just to be sure …
also you have to add this parameter into the live usb grub so that you are able to even boot it … here is a link on how to do it
you also need to add it again in the installation
and clear your logs, you have almost 3Gb of them because of this issue:
sudo journalctl --rotate
sudo journalctl -m --vacuum-time=1s
and add the quiet parameter back into the grub
run:
sudo update-grub