OS Upgrade

OS Upgrade#

The procedure must be carried out on each Node, starting from the one on which the Directory Server Role is installed, and it will require to reboot the Node and therefore a downtime of the Carbonio CE infrastructure must be planned. Please read carefully the whole section before starting the upgrade.

The procedure is divided into phases:

  1. upgrade PostgreSQL from 12 to 16 (you can skip it if you already upgraded)

  2. manual upgrade Carbonio CE to 24.12.1

  3. upgrade Ubuntu LTS from 20.04 to 22.04 (Jammy Jellifish) or RHEL 8 to RHEL 9

  4. upgrade Carbonio CE's packages to match the correct repository

  5. complete the upgrade procedure

Phase 1#

Upgrade to PostgreSQL 16 is mandatory, because Ubuntu 22.04 does not support the current PostgreSQL 12 installed on Carbonio CE. Directions to upgrade PostgreSQL can be found in Section Upgrade to PostgreSQL 16.

Hint

PostgreSQL 12 will be supported only until 24 November 2024, so if you did not already upgrade to 16, you should do so as soon as possible.

Phase 2#

This phase is the same as a normal upgrade, so please refer to Section Upgrade From 24.12.0.

Phase 3#

This phase requires to upgrade the Ubuntu 20.04 distribution to 22.04 or the RHEL 8 to RHEL 9 please refer to the Ubuntu and Red Hat upstream documentations.

Note

If you upgrade to Ubuntu 22 and use the Carbonio Monitoring role, please make sure to change the Grafana repository.

Phase 4#

Once you successfully carried out the first three phases, you can proceed to update the Carbonio CE packages to match the distribution. This phase requires some manual command to be executed.

During the Ubuntu upgrade, the file /etc/apt/sources.list.d/zextras.list will be modified. You need to make sure that it contains only the correct repository, that is, the line defining the repository

  1. contains the word jammy

  2. is not commented, i.e., it does not start with a # sign

During the RHEL upgrade, the file /etc/yum.repos.d/zextras.repo will be modified. You need to make sure that it contains only the correct repository, that is, the line defining the repository is:

baseurl=https://repo.zextras.io/release/rhel9

Then update the package list, and the packages themselves with these commands

# apt update && apt dist-upgrade

# dnf upgrade –best –allowerasing

Finally, reboot the Node.

# reboot