Step E: Upgrade the worker nodes

Create a backup of the database on the node. See Backing up data.

Set boot mode on the node to UEFI. See Backing up data.

Perform a kickstart to upgrade the operating system to RHEL 9. See Installing RHEL 9.

Install Elemental Live version 2.26.1 on the node. See Installing Elemental Live on a worker node.

Restore the database onto each node. See Restoring the database.

Install new licenses.

If this worker node handles SMPTE 2110 inputs or outputs, you should have obtained a new license that includes the SMPTE 2110 add-on package. (The procedure for obtaining a new license is described in the essential notes in the current Release Notes.) To deploy the license, see the section about configuring licenses in the AWS Elemental Live Configuration Guide.

Add the worker node to the cluster. Then add the node to its redundancy group. Finally, assign channels to the node, using the list of channel assignments) that you created. See Adding worker nodes.

If the original cluster is configured for user authentication, then log onto node X and enable node authentication, in order to let operators work on the newly added worker node. Note that you must enable node authorization each time you add a worker node. For more information, see Enabling user authentication.

This step applies if the original cluster design included nodes that connected to an SDI input using a router.

In the section about planning maintenance windows, we recommended that you migrate all worker nodes that rely on the router at the same time. If you have followed this advice, and you are now moving those nodes, you need to reconfigure the router.

You need to reconfigure the router because the new cluster has information about the SDI inputs and about the router, but it is missing the mapping from the inputs to the router. You must reconfigure this information now. You should have made a note of the previous mappings.

You perform this work on the primary Conductor (node X). See the information about configuring routers in the Reference: Configure connectivity section of the AWS Elemental Conductor Live Configuration Guide. Specifically, start at Step E in that procedure.

Set up worker features.

Configuration information about some features isn't included in the database. If one of these features applies to the current node, you must set up the feature again. The features are:

You perform this work on the primary Conductor (node X). See the section about features in the AWS Elemental Live Configuration Guide.

Start channels on this node. You assigned the channels to this node when you added the node to the cluster. Therefore, the channels that were running on this node in the original cluster will restart on this node in the new cluster. See Restarting channels.