Upgrade To a Fresh Feisty Install

Please note - This method is intended for those wishing to perform a fresh install of Feisty but maintain their user data and installed applications.

1. You may wish to make a back up of your current installation. One option is with partimage.

   • Psychocats ~ Using PartImage in Ubuntu

2. You can preserve you user data and personal settings if you use a separate home partition. If you do not currently do not have a separate home partition you can easily create one.

   • Psychocats ~ Create a separate /home partition in Ubuntu

3. Create a lists of your currently installed packages.

   •   dpkg --get-selections | grep -v deinstall > ubuntu-packages

     Note: That is two - - in front of "get-selections" with no space.

4. Save this file ubuntu-packages on an external media (usb/floppy/cd).

5. Download and install Feisty. If you have a separate /home partition, mount it at /home DO NOT FORMAT IT.

6. Copy ubuntu-packages from your external media back to your home directory.

7. Restore your packages. First enable your repositories. Then, in a terminal,

   •   sudo aptitude update
      sudo dpkg --set-selections < ubuntu-packages
      sudo dselect

   Note: That is two - - in front of "set-selections" with no space.

viola

source:
https://help.ubuntu.com/community/FeistyUpgradesFreshInstall?highlight=(install)|(fresh)