I want to upgrade from Lubuntu 19.04 to 20.04 and I am curious if there is some way of doing this from the terminal while erasing all my old files at the same time. I think there's a term for upgrading an OS while wiping the hard drive but I can't remember it, so I haven't been able to find anything searching for pre-existing answers.
I am not sure if this matters, but I originally downloaded Lubuntu 19.04 from lubuntu.net, not lubuntu.me. It's running on a chromebook with the original OS mostly removed. I have it set up so if anything goes wrong I can just reinstall chrome OS before overwriting it again.
I don't have a cd/dvd drive, and I only have one usb stick, so I'd rather not go through the hassle of installing from usb.
