Ubuntu Sources List For Feisty

• Download the sources list file from here... http://itmission.org/sources.list

  mv /etc/apt/sources.list /etc/apt/sources.list.orig
  cd /etc/apt/
  wget  http://itmission.org/sources.list

• Usefull Command

  sed -e 's/\edgy/ feisty/g' -i /etc/apt/sources.list