I apologize in advance for the poorly formated question: I don't know much about linux so I don't know what information to include.
I was really lazy about upgrading, and up until yesterday, I was still running jaunty. I wanted to upgrade to trusty, but of course you can't complete the upgrade in one step. So I downloaded the iso for the alternate cd install for Karmic and it ran just fine. Then, I did the same for Lucid, and it almost worked, but it said there was some problem with adobe-flashplugin. I removed adobe-flashplugin and now I have tons of broken packages. apt-get update and aptitude update don't work, giving me the message "unknown error executing gpgv". Furthermore, the alternate cd upgrade for precise pangolin doesn't work, saying that it "could not calculate the upgrades." Synaptic package manager isn't working properly either. Does anyone have any idea what I can do to fix this problem?