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Upgrade Ubuntu 9.04 to 9.10 (Jaunty to Karmic)

Ubuntu has just released the final version of Ubuntu 9.10 (Karmic Koala). If you're running the previous version Ubuntu 9.04 (Jaunty Jackalope), you can easily upgrade using the terminal.

If you have a desktop environment installed you can just click the upgrade button in the Update Manager accessible from System -> Administration -> Update Manager but on server systems without desktop environment you may need to upgrade using the terminal.

1. Install the update manager

sudo apt-get install update-manager-core


2. Launch the update and follow on-screen instructions

sudo do-release-upgrade