Most of the Ubuntu user should already get the news that Ubuntu Gutsy Gibbon is around the corner. Just in 11 more days for the official release.

Actually you now already available to download the beta version. From what I know download the iso mirror image from their web site and burn to your CD. Then upgrade would be the best way.

But you could still download directly by just change your Ubuntu Feisty Fawn repository.

Step 1: Using Linux sed command to change all the source path of “feisty” to “gutsy” in the sources.list

sudo sed -e ’s/\sfeisty/ gutsy/g’ -i /etc/apt/sources.list

Step 2: Get a huge update of the software list from Gutsy

sudo apt-get update

Step 3: Upgrade all to new version

sudo apt-get upgrade

The download process might take quite a long time. So, my recommend is download the iso mirror image by download manager to speed up.