Trying to upgrade to 16.04. Currently on the "Installing the upgrades" section. The Distribution Upgrade window has been "Configuring procps (amd64)" for about 3 hours now. I'm thinking it might be stuck? Any way to determine if that is the case? And if it is, the best way to interrupt the upgrade and restart?
Okay, so the install was stuck - still not exactly sure why. I wound up killing it. To recover, I did the following (found in another post): 1) sudo dpkg --configure -a 2) sudo apt-get update 3) sudo apt-get upgrade There were packages that were held back, but when I tried to install them with: 4) sudo apt-get install package-name another-package-name they all failed to install. I'm not sure yet whether those will be an issue or not in the long run... Then I did: 5) sudo apt-get autoremove to clean things up. Then crossed my fingers (an important step) and rebooted. And lo and behold it came up. Things seem to look like they did before so that's a relief. Thanks Frogatto for replying to me.