I'm trying to upgrade my 12.10 system, but I can't even run the Software Updater because it dies when trying to find the now non-existent quantal packages. Similarly with command line level apt-get upgrading. Very frustrating.
How do you upgrade now that ubuntu's wiped out those packages that are needed to upgrade?
have you tried "sudo apt-get dist-upgrade"? I know it might not be the best thing to skip releases so much but since it is so close to 12.04 fundamentally I don't think it would be a problem. Try that and if that fails then just do a normal install with a new 14.04 disk and use the same username and password and it should copy over files and installed packages just fine
