10.1. Upgrade

This chapter guides you through the upgrade process of your Management Center version 2.17.2 to version 3.x.

It is important to follow the steps carefully. We advise you to create a snapshot of the Management Center itself before starting your upgrade.

If you are using a Master ASGARD in your environment, we advise you to upgrade it first.

10.1.1. Preparation

To prepare for your upgrade, we compiled a list of tasks you should follow:



Snapshot of your Management Center

For disaster recovery

Management Center running version 2.17.2

Prerequisite for the Major Upgrade

Connection to our new update servers

New update server infrastructure

For details regarding some of the above tasks, see the next section in this manual.

With the new version of your Management Center, we also made changes to our update servers. Please make sure that all your components can reach the following servers:






Old update server



New update Server

The old update server is needed to fetch the updater and other prerequisites. The new update server is needed to upgrade your servers to Debian 12 and also to install any new packages, which are needed for your Management Center v3.

You can find the corresponding IP-Addresses to the above FQDNs here: https://www.nextron-systems.com/hosts/. Management Center running version 2.17.2

To check if your Management Center is running on the correct version you can navigate to Settings and Updates. The page should looks like this:

Update Section

Update Section

10.1.2. Performing the upgrade

In this section we will perform the actual upgrade of the Management Center. Management Center Upgrade

To start your upgrade, connect to your Management Center via SSH. We will utilize asgard-updater to perform the upgrade. First we need to check if a newer version of the asgard-updater is available. If you get the highlighted output, you have already the newest version installed (the version might differ from the output here):

nextron@asgard:~$ sudo apt update
nextron@asgard:~$ sudo apt install asgard-updater
Reading package lists... Done
Building dependency tree
Reading state information... Done
asgard-updater is already the newest version (1.0.15).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

You can now run the asgard-updater with the following command:

nextron@asgard:~$ start-asgard-update

The server running your Management Center will now restart multiple times. It is important to not interrupt the upgrade process and let the server do all the tasks. You can, however, see if any errors occurred during the upgrade or just observe at what stage the upgrade is.

Run the following command to see the status of your upgrade:

nextron@asgard:~$ sudo tail -f /var/log/asgard-updater/update.log


Since the upgrade is downloading many packages of the debian base system, the process will take a while. The web interface of your Management Center might be available throughout the upgrade, but we still advise to use it until the upgrade is finished.

The update is finished if you are seeing the following lines:

nextron@asgard:~$ sudo tail -f /var/log/asgard-updater/update.log
2024-01-16T14:20:54.253032+01:00 asgard asgard-updater[667]: Upgrade finished. Deactivating service...
2024-01-16T14:20:54.259176+01:00 asgard asgard-updater[667]: Removed "/etc/systemd/system/multi-user.target.wants/asgard-updater.service".

Your upgrade is now finished, and you can use your Management Center with the newest version.