The real question...is it fun, yet?
I'm not sure what happened, but I'll tell you what it looks like is happening.
It looks like you are back at the beginning, or near beginning.
When you go to re/install a package and he machine responds "I don't know what you are talking about", there are three possibilities.
1) You have made a typo. You have issued an incorrect command for whatever reason. Wrong syntax, wrong spelling, wrong command.
2) There's nothing wrong with command, except the information/action you seek is not available. The file does not exist, etc.
We know the 1 and 2 are correct, what's the third option?
3) the system doesn't know that both 1 and 2 are correct. The list of packages available in the repositories is <<empty>>, or just wrong. A new/fresh persistence file can't find anything because it is 'shipped' with an empty list.
Code:
sudo apt-get update
to refresh the list. This is the error I get when both 1 and 2 are correct and the system doesn't know it.
By default, you decide when you want even to consider updating. (There are some exceptions like qtVLM, [Sailboat Router]). Therefore you must provide a current list.
Try updating the list (sudo apt-get update). If that doesn't work. We then looks for the 4th most likely cause.