I think ubuntu wouldn't upgrade because I was using an older version of NVIDIA.
I ended up finding this:
And ran it and it upgraded. Unfortunately I then got a blank black screen after logging in. I could get into xfce but not gnome or unity default.
I eventually found this post:
Ubuntu 13.10 - Black screen after login session
where this post by Erick David Ruiz Coronel fixed it.
Start ubuntu......login......now in the blackscreen go to the terminal
ctrl-alt-f1 and type
and enter, error? no problem........now type
and enter ......error? np now without exiting or stoping the unity comand return to the ubuntu interface in my pc is ctrl-alt-f7 , then now you can open terminal....type
ctrl-aLT-t and type
..... nautilus will open ( DO NOT CLOSE NAUTILUS ) , now open another terminal without closing nautilus terminal ...... and type
.... search for graphic drivers .... my problem was the default drivers of X.org .... I have an ati video card and I installed the drivers of fglrx-updates if you have nvidia install the drivers of nvidia or if you have ati install the one that i installed...... then reboot
after login u will see nautilus running well and the wallpaper the only thing not working is unity...
open terminal and type:
dconf reset -f /org/compiz/
I hope this fix your problem.
So far so good.
THANK YOU ask ubuntu.