When upgrading from Ubuntu GNOME 14.04 LTS to 15.04 I ran into about 8 errors and got a broken installation that despite saying it couldn't upgrade was 15.04. The background was gone and a few things are off but after using:
sudo apt-get update sudo dpkg --configure -a sudo apt-get upgrade --fix-broken sudo apt-get -f dist-upgrade
I seem to be back in order. How do I know if I am still running a broken OS? Just because it appears to be functional, does not mean that something is broken. I'll be learning a lot of new things and now every time I troubleshoot, the dodgy upgrade will be a cause I can't disprove. How do I verify? Do I wipe my drive and start again?