What happens when the OS that is running the browser fails to update because /boot has run out of room for a new Linux kernel (this happened to me the other wee

What happens when the OS that is running the browser fails to update because /boot has run out of room for a new Linux kernel (this happened to me the other week)? What happens when the browser update fails because the package database got corrupted? What happens when a lock file stop the whole system updating because of a previous iffy update? You are going to need to drop to a terminal and fix that issue or reinstall the whole OS. Either way you are going to need to know something about how the machine works.