In this post, I will show you step-by-step to upgrade to Ubuntu 6.10 (Edgy Eft).
Step 1: Edit your /etc/apt/sources.list as root. Change every occurrence of dapper to edgy using this simple command
sudo sed -e 's/\sdapper/ edgy/g' -i /etc/apt/sources.listStep 2: Update the source list using the following command
sudo apt-get updateStep 3: Upgrade to new system using this command
sudo apt-get dist-upgradeStep 4: Upgrade to new system using this command
sudo apt-get -f installStep 5: Reboot your machine to take your new Ubuntu 6.10 installation to effect all changes.
sudo dpkg --configure -a