What could be the issue if mgmtCompanion doesn't start?

Given that you have information showing up in the picture you posted below, it looks like the companion started, it just took longer then the ~1 Minute we expect it to take. If you are unsure about the status of the mgmtcompanion try these commands:

bash
sudo $(which kubectl) get pod --kubeconfig /etc/rancher/k3s/k3s.yaml -n mgmtcompanion mgmtcompani
on-0

It should show "Ready 1/1" and "Status Running". If not you can get more information about startup problems by running:

bash
sudo $(which kubectl) describe pod --kubeconfig /etc/rancher/k3s/k3s.yaml -n mgmtcompanion mgmtcompani
on-0

Finally, if the pod is running, but you want to see what it is doing, you can output the logs using:

bash
sudo $(which kubectl) logs --kubeconfig /etc/rancher/k3s/k3s.yaml -n mgmtcompanion mgmtcompanion-0

I will try again, @Jermuk suggests its just because of a slow system. I'm not convinsts tbh. I've let it run for more than an hour and saw in the get pods that every container did a lot of restarts. I think something is wrong