Ubuntu 14.04 is the version of the Ubuntu operating system released on April 17, 2014. The development codename given to this release is "Trusty Tahr".
Before You Start
- You can directly upgrade to Ubuntu 14.04 ("Trusty Tahr") from Ubuntu 13.10 ("Saucy Salamander").
- Be sure that you have all updates applied to your current version of Ubuntu before you upgrade.
Before upgrading it is recommended that you read the release notes for Ubuntu 14.04, which document caveats and workarounds for known issues in this version.
If you have a version of Ubuntu other than 13.10, please see UpgradeNotes for information on how to upgrade.
Upgrade from 13.10 to 14.04
Ubuntu Desktops 13.10 to 14.04 (Recommended)
You can easily upgrade over the network with the following procedure.
Run the update-manager application from the Unity Dash or a command line
In Update Manager, click the Settings... button, and enter your password to start the Software Sources application.
Select the sub menu Updates from the Software Sources application.
- Confirm the "Notify me of a new Ubuntu version:" option is set to "For any new version", and change it if otherwise.
- Close the Software Sources application and return to Update Manager.
In Update Manager, click the Check button to check for new updates.
If there are any updates to install, use the Install Updates button to install them, and press Check again after that is complete.
- A message will appear informing you of the availability of the new release.
Click Upgrade.
- Follow the on-screen instructions.
Kubuntu Desktops (Recommended)
Direct upgrades to Kubuntu 14.04 are supported from Kubuntu 13.10.
Ubuntu Servers (Recommended)
Install update-manager-core if it is not already installed:
sudo apt-get install update-manager-core
Launch the upgrade tool:
do-release-upgrade
- Follow the on-screen instructions.
See Also
UpgradeNotes for all supported versions of Ubuntu
Troubleshooting
See the release notes.