First thing you should do is make a backup copy of your current /etc/apt/sources.list by doing the following command:
sudo cp -a /etc/apt/sources.list /etc/apt/sources.list.old
Once you do that and perform the gpg commands at the bottom of this post as well, you'll want to immediately perform the following commands:
sudo apt-get update && sudo apt-get upgrade
If you want to update any kernels or major things like that then run the following command instead:
sudo apt-get update && sudo apt-get dist-upgrade
Then open up your favorite editor as root user and copy/paste the following code into the editor and save the file as /etc/apt/sources.list An example of this would be to use the following command:
kdesu kwrite /etc/apt/sources.list
You can replace 'kwrite' with your favorite editor. If you want to do it with a CLI editor, then use this command:
sudo vi /etc/apt/sources.list
Copy and paste the following information into the above mentioned file that you have opened in your editor of choice:
# Automatically generated sources.list # http://www.ubuntulinux.nl/source-o-matic # # If you get errors about missing keys, lookup the key in this file # and run these commands (replace KEY with the key number) # # gpg --keyserver subkeys.pgp.net --recv KEY # gpg --export --armor KEY | sudo apt-key add - # Ubuntu supported packages #(packages, GPG key: 437D05B5) deb http://se.archive.ubuntu.com/ubuntu dapper main restricted deb http://se.archive.ubuntu.com/ubuntu dapper-updates main restricted deb http://security.ubuntu.com/ubuntu dapper-security main restricted # Ubuntu supported packages #(sources, GPG key: 437D05B5) deb-src http://se.archive.ubuntu.com/ubuntu dapper main restricted deb-src http://se.archive.ubuntu.com/ubuntu dapper-updates main restricted deb-src http://security.ubuntu.com/ubuntu dapper-security main restricted # Ubuntu community supported packages #(packages, GPG key: 437D05B5) deb http://se.archive.ubuntu.com/ubuntu dapper universe multiverse deb http://se.archive.ubuntu.com/ubuntu dapper-updates universe multiverse deb http://security.ubuntu.com/ubuntu dapper-security universe multiverse # Ubuntu community supported packages #(sources, GPG key: 437D05B5) deb-src http://se.archive.ubuntu.com/ubuntu dapper universe multiverse deb-src http://se.archive.ubuntu.com/ubuntu dapper-updates universe multiverse deb-src http://security.ubuntu.com/ubuntu dapper-security universe multiverse # kubuntu.org packages for the latest KDE version #(packages, GPG key: DD4D5088) #deb http://kubuntu.org/packages/kde-latest dapper main # kubuntu.org packages for the latest Koffice version #(packages, GPG key: DD4D5088) deb http://kubuntu.org/packages/koffice-latest dapper main # kubuntu.org packages for the latest amaroK version #(packages, GPG key: DD4D5088) deb http://kubuntu.org/packages/amarok-latest dapper main deb-src http://kubuntu.org/packages/amarok-latest dapper main # Bleeding edge wine packages (packages) #deb http://wine.budgetdedicated.com/apt dapper main # The Opera browser (packages) deb http://deb.opera.com/opera etch non-free # Bazaar-NG development #(packages, GPG key: 1F44842D) #deb http://people.ubuntu.com/~jbailey/snapshot/bzr ./ #deb http://download.skype.com/linux/repos/debian/ stable non-free #deb http://download.videolan.org/pub/videolan/debian/ sid main ## http 100mbit/s mirror provided thanks to OVH (http://ovh.com) deb http://packages.freecontrib.org/plf/ dapper free non-free deb-src http://packages.freecontrib.org/plf/ dapper free non-free # seb128 repository (gaim - rhythmbox) deb http://people.ubuntu.com/~seb128/deb ./ # BMPx deb http://eros.vlo.gda.pl/~szuwarek/files/linux/bmpx/ dapper/ # Samba #deb http://www.linux2go.dk/ubuntu dapper main # Gauvain Repository #deb http://gauvain.tuxfamily.org/repos dapper contrib #deb-src http://gauvain.tuxfamily.org/repos dapper contrib # Mjpegtools and Cinelerra packages (choose your arch) deb http://www.kiberpipa.org/~gandalf/ubuntu/dapper/mjpegtools ./ deb http://www.kiberpipa.org/~gandalf/ubuntu/dapper/cinelerra/i686/ ./ # deb http://www.kiberpipa.org/~gandalf/ubuntu/dapper/cinelerra/pentium4/ ./ # deb http://www.kiberpipa.org/~gandalf/ubuntu/dapper/cinelerra/athlonxp/ ./ # A little too quiet #deb http://apt.alittletooquiet.net/staging dapper main # MythTV 0.19 #deb http://home.eng.iastate.edu/~superm1 dapper main #deb-src http://home.eng.iastate.edu/~superm1 dapper main # Koffice 1.5.2 - J Riddell deb http://kubuntu.org/packages/koffice-16beta1/ dapper main deb http://kubuntu.org/packages/kde-353/ dapper main deb http://se.archive.ubuntu.com/ubuntu/ dapper-backports main #deb-src http://se.archive.ubuntu.com/ubuntu/ dapper-backports main deb http://se.archive.ubuntu.com/ubuntu/ restricted universe multiverse #deb-src http://se.archive.ubuntu.com/ubuntu/ restricted universe multiverse # imbrandons personal repos deb http://imbrandon.com/packages dapper amarok deb http://imbrandon.com/packages dapper konversation-nightly # SoS repos deb http://SeerOfSouls.com/ dapper contrib #deb-src http://SeerOfSouls.com/ dapper contrib #deb http://SeerOfSouls.com/ dapper e17 #deb-src http://SeerOfSouls.com/ dapper e17
And the gpg commands to import the keys are as follows:
You'll want to perform all of the following commands as root user:
gpg --keyserver subkeys.pgp.net --recv B0B7481B1F44842D && gpg --export --armor B0B7481B1F44842D | sudo apt-key add - gpg --keyserver subkeys.pgp.net --recv A506E6D4DD4D5088 && gpg --export --armor A506E6D4DD4D5088 | sudo apt-key add - gpg --keyserver subkeys.pgp.net --recv 49A120FD1135D466 && gpg --export --armor 49A120FD1135D466 | sudo apt-key add - gpg --keyserver subkeys.pgp.net --recv 4CF19C3233BAC1B3 && gpg --export --armor 4CF19C3233BAC1B3 | sudo apt-key add - gpg --keyserver subkeys.pgp.net --recv 07DC563D1F41B907 && gpg --export --armor 07DC563D1F41B907 | sudo apt-key add - gpg --keyserver subkeys.pgp.net --recv 31A5F97FED8A569E && gpg --export --armor 31A5F97FED8A569E | sudo apt-key add - gpg --keyserver subkeys.pgp.net --recv A278DF5EE8BDA4E3 && gpg --export --armor A278DF5EE8BDA4E3 | sudo apt-key add - gpg --keyserver subkeys.pgp.net --recv F653CB3098D3F7A7 && gpg --export --armor F653CB3098D3F7A7 | sudo apt-key add - gpg --keyserver subkeys.pgp.net --recv 580E2519969F3F57 && gpg --export --armor 580E2519969F3F57 | sudo apt-key add - wget http://www.geole.de/fileadmin/data/misc/geole-apt-key.gpg sudo apt-key add geole-apt-key.gpg wget http://seerofsouls.com/keys/hawkwind.asc sudo apt-key add hawkwind.asc wget http://seerofsouls.com/keys/philip.asc sudo apt-key add philip.asc