Ubuntu 24.04, codename “Noble Nombat”, was released on the 25th of April 2024. This guide describes how to update to this version.

Before upgrading to Ubuntu 24.04, you should do the following things:

  • Back up all your files on the external drive.
  • Make sure you have a stable internet connection.
  • Disable any external repository.

In this article, I will show you how to upgrade from Ubuntu 22.04 to the new Ubuntu 24.04 in a few easy steps. Be aware that this might lead to downtime for some services.

Prerequisites

  • A server running Ubuntu 22.04.
  • A root password is configured on the server.

Update the System

First, you must update and upgrade all your system packages to the latest version. Run the following command to update and upgrade all packages:

apt-get update -y

apt-get upgrade -y

apt-get dist-upgrade -y

Next, remove all unwanted packages with the following command:

apt-get autoremove

Next, clean up the APT package cache with the following command:

apt-get clean

Next, restart your system to apply all updates:

reboot

Update to Ubuntu 24.04 using the do-release-upgrade tool

Now we can upgrade to Ubuntu 24.04 using the do-release-upgrade tool. Run this command:

do-release-upgrade

Go through the upgrade steps shown on the screen. The tool will query you for input every now and then and will only continue after you choose/confirm an option.

When the tool is done, reboot your server. If this has not been done during the upgrade process, do it manually:

reboot

Re-enable external repositories

If you had any extra repositories configured, these will be disabled after using the do-release-upgrade tool. To check if you have such repositories, list the content of the sources.list.d directory:

ls -la /etc/apt/sources.list.d/

If there are any .list or .list.distUpgrade files in this directory, check with the maintainer of the relevant repository/repositories to see what the correct configuration if for Ubuntu 24.04 (jammy). After updating the file(s) accordingly, run:

apt update

apt upgrade

Verify Ubuntu 24.04 Upgrade

At this point, your server is upgraded to Ubuntu 24.04. You can now verify it using the following command:

lsb_release -a

You should see the Ubuntu version in the following output:

No LSB modules are available.

Distributor ID: Ubuntu

Description:    Ubuntu 24.04.1 LTS

Release:        24.04

Codename:       noble

Conclusion

Your server is now upgraded to Ubuntu 24.04.

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