Updating from Ubuntu GNOME Shell Remix 11.10
This is a guide that may help you upgrading Ubuntu GNOME Shell Remix from version 11.10 to 12.04. Please note that it is easier and recommended to upgrade by doing a fresh install. This guide involves using the command line.
The Upgrade Guide
Open the software properties application by typing the following command in a terminal window and disable all PPAs except the GNOME Shell Remix PPA, as packages from PPAs may cause problems during the update.
After doing that, enter the following commands. This will change all the package sources from the 11.10 ones to the new ones from 12.04.
sudo sed -i 's/oneiric/precise/g' /etc/apt/sources.list sudo sed -i 's/oneiric/precise/g' /etc/apt/sources.list.d/*
Update the package information:
sudo apt-get update
Now you can start the upgrade:
gksu "update-manager --dist-upgrade"
The following procedure is very similar to the update procedure of a Ubuntu installation with Unity. Please note that you may have to open the command window in the upgrade dialog to complete the upgrade.