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Upgrading to Ubuntu 24.04 (Noble Numbat)

Overview​

In this guide, we will see how to upgrade an existing Ubuntu 22.04 based Cloudron to Ubuntu 24.04. If you are still on Ubuntu 20, you must first upgrade to Ubuntu 22 before upgrading to Ubuntu 24. Follow this guide to upgrade to Ubuntu 22.04.

Please note that Ubuntu 22.04 will be supported by Canonical till 2027. Cloudron will support Ubuntu 22.04 and 24.04. It has the same feature set across both the versions.

Checklist​

Before upgrading, please note the following:

  • Cloudron has to be on at least version 8.0. This can be verified by checking the version in the Settings view. Cloudron releases prior to 8.0 do not support Ubuntu 24.04.
  • Ubuntu has to be on version 22.04. Check the output of lsb_release -a to confirm this.
  • The upgrade takes around 1-3 hours based on various factors like network/cpu/disk etc

Pre-flight​

Before starting the upgrade process, it's a good idea to create a server snapshot to rollback quickly. If your VPS does not have snapshotting feature, it's best to create a full Cloudron backup before attempting the upgrade (Backups -> Create Backup now).

Highly recommend taking server snapshot

Taking a server snapshot will save a lot of trouble if your server is unable to start up after a failed Ubuntu upgrade. If your VPS provider does not have snapshot feature, it is critical to have backups outside of your server. This is because in corner cases Ubuntu fails to boot entirely and your data and backups will be locked up inside the server disk.

Upgrading​

Start the upgrade:

bash
dpkg --configure -a
apt update
pt upgrade
do-release-upgrade

Upgrade notes:

  • Accept running an additional ssh deamon at port 1022
  • Choose 'yes' to Restart services without asking.
  • For all packages (mime, nginx, timesyncd, logrotate, journald etc), select N or O : keep your currently-installed version. This is the 'default'.

Once upgrade is complete, restart the server.

Post Upgrade​

Version older than Cloudron 9

With Cloudron 9, collectd was removed and this step can be skipped.

  • Fixup collectd. /etc/default/collectd might have a LD_PRELOAD line from previous releases. If you make any changes, restart collectd using systemctl restart collectd .
/etc/default/collectd
# DELETE THIS LINE OR EQUIVALENT
LD_PRELOAD=/usr/lib/python3.10/config-3.10-x86_64-linux-gnu/libpython3.10.so
  • Install unbound-anchor using:
    Bash
    apt install unbound-anchor
    In some VPS, this is not installed automatically.

Post Upgrade checks​

  1. Verify that the output includes Ubuntu 24.04 from running the following command:
    Bash
    lsb_release -a
  2. Verify that the output states active (running) from running the following command:
    bash
    systemctl status box
  3. Verify that the output states active (running) from running the following command:
    Bash
    systemctl status unbound
  4. Verify that all the services in the Services view of Cloudron dashboard are running.
Upgrade Successful

If the above steps are all confirmed, you have successfully upgraded your Ubuntu 22 to Ubuntu 24:::