I upgraded from Ubuntu 11.10 to 12.04 using a bootable USB. After the upgrade, all non-default packages from 11.10 are gone.
For example, I did not have Chromium, Eclipse etc. Although, I could see these in the history in the "Ubuntu Software Center".
Is there any way I can retrieve all these packages (even reverting back to 11.10 is also fine with me)?
What could be a possible reason for this (We plan to upgrade a few more machines)?
During the upgrade process, I had unchecked the box which asked permission to look online for upgrade/packages. Co