Ubuntu 18.04 is the version of the Ubuntu operating system released in April, 2018. The development codename given to this release is "Bionic Beaver".
Before You Start
- You can directly upgrade to Ubuntu 18.04 ("Bionic Beaver") from either Ubuntu 16.04 LTS ("Xenial Xerus") or Ubuntu 17.10 ("Artful Aardvark").
- 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 18.04, which document caveats and workarounds for known issues in this version.
If you have a version of Ubuntu other than 16.04 or 17.10, please see UpgradeNotes for information on how to upgrade.
Upgrade from 16.04 or 17.10 to 18.04
Upgrading Ubuntu Desktops to 18.04 (Recommended)
You can easily upgrade over the network with the following procedure.
Run the update-manager application;
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" (or "For long-term support versions"), 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 18.04 are supported from Kubuntu 16.04 or 17.10.
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.