I upgraded the firmware of my RPi4b to the 6/15 update that supports booting from USB. I then used BalenaEtcher to put the latest LibreElec image on it. The end result was a 537MB fat16 boot partition, and a 33.6MB ext4 partition that appears to be mounted as /storage.
How can I expand "/storage" to take the entire 8TB drive instead of just a tiny chunk of it? I want it to host my entire movie collection.