Ubuntu 7.04 is the current development version of the Ubuntu operating system. It is to be released in April 19th 2007.The common name given to this release from the time of its early development was “Feisty Fawn”

Upgrade Ubuntu 6.10 (Edgy Eft) to Ubuntu 7.04 (Feisty Fawn)

2 methods to upgrade Ubuntu Edgy to Ubuntu Feisty

1. Using GUi
2. Using apt-get

Upgrading Ubuntu Edgy to Ubuntu Feisty

Method 1 - Using GUI
If you want to upgrade using GUI use the following command

a) gksu “update-manager -c -d”

• The “-d” switch instructs Update Manager to consider pre-release versions and “-c” switch tells it to look for upgrades at all.

b) You should see the following screen here Now you can see 7.04 is available for upgrade click on upgrade

c) Now you should see the release notes as follows here you need to click on upgrade

• Once you click on upgrade you might get the error “Authentication failed”

• You need to fix the above error for this open the terminal and type the “gpg” and press enter once you see the following message

• gpg:Go ahead and type your message …

• Press Ctrl+C and then start the install process again.

• Now you should see the following screen downloading upgrade tool

• You need to enter root password and click ok

• Preparing the upgrade in progress

d) You need to confirm the upgrade process by clicking “Start Upgrade”

e) Download in progress for all the required packages for Upgrade

• Installation in progress

• If you click on Terminal to see detailed installation in progress

• Cleaning Up is in Progress

You need to restart the system to complete the Upgrade by clicking “Restart Now”

Method 2 - Using apt-get

1.Edit your /etc/apt/sources.list as root. Change every occurrence of dapper to edgy.

2. sudo vi /etc/apt/sources.list or

3.use the following Simple command

• sudo sed -e ’s/\edgy/ feisty/g’ -i /etc/apt/sources.list
• Now you need to update the source list using the following command

• sudo apt-get update
  Upgrade using the following command
• sudo apt-get dist-upgrade
  Double check your process was finished properly using the following commd
• sudo apt-get -f install
  sudo dpkg --configure -a

4. Now you need to Reboot your machine to take your new ubuntu 7.04 installation to effect all changes.
Testing Your Upgrade

You can check the ubuntu version installed using the following command
sudo lsb_release -a

Output Looks like below
Distributor ID: Ubuntu
Description: Ubuntu feisty (development branch)
Release: 7.04
Codename: feisty

or
Just type the following command in your terminal

cat /etc/issue
Output Lokks like below