I installed ChrUbuntu 13.04 and it works great. Recently, I was updating some programs when a pop-up appeared asking if I wanted to upgrade to the newest version. I didn't realize that it was still unstable and buggy. I am unsure on how to upgrade. I've been told that I need to wipe the Ubuntu partition completely, but I don't see why that is necessary.
Basically I want to remove Ubuntu 13.10 and install 13.04 on the partition where 13.10 used to be.