Some key combination I pressed during an update from 12.04 to 12.10 ( en-route to 13.04 ..my final objective ) crashed Unity.
I could however start a terminal and I tried the fixes outlined in https://help.ubuntu.com/community/PackageManagerTroubleshootingProcedure
However the step 5 outlined in the page above gave me similar errors when I got to the dpkg --configure -a step.
I could not recover and continue the upgrade ..so although risky I rebooted , stuck in a 12.10 CD and asked it to repair my install that it detected. After running boot repair to install grub after another reboot ..I am finally in a full 12.10 session.
However I am noticing many weird behaviors after the repair. The system is running very erratically and slow. Emacs while editing ".bashrc" failed to keep an unmodified .bashrc ..I actually got a .bashrc does not exist message when I tried to open the file using vi on another terminal simultaneously. Many libraries which I had in my 12.04 install are now gone, but no worries I was warned.
what would be the recommended option to get to 13.04 now. I have a backup of my /home folder. I also have the dpkg backups made during the recover steps outlined in the community docs
Should I just do a clean install of 13.04 and then move my /home data back and then manually reinstall all my missing packages . How do I get a list of all packages that were on my 12.04 system considering the dpkg.backup is still on my disk.