In this case i'm planning to do a fresh install.
So this is the procedure:

sudo bash -c "$(wget -O - https://raw.githubusercontent.com/abcd567a/dump1090/master/install_dump1090_mut_1.15.sh)"
and then

sudo bash -c "$(wget -O - http://repo.feed.flightradar24.com/install_fr24_rpi.sh)"
After this, it all should start automatically every time there is a reboot, right?