I have dual boot Win7/Ubuntu 12.10. I have a 13.04 live USB. How can I upgrade the 12.10 install from the live USB?
I read previous questions here that answer this question - they all say that the upgrade option comes up when you hit install. In my case, the options that come up are "Install Ubuntu alongside other OSes", fresh install, and "something else". I tried the first and last of those options, and neither of them showed any option for upgrades.