/dev/kmsg: no such file or directory

[Citrullin]

I installed the helm chart into a k3s cluster and tried to create a k3k cluster, but it fails.
Error: failed to run Kubelet: failed to create kubelet: open /dev/kmsg: no such file or directory

This is an issue on a couple of systems. See here.

The solution is just to mount host kmsg into the container.

[Citrullin]

This is quite confusing. The agents have /dev/kmsg available. They run in privileged: true
So does the server, but the directory isn't mounted.

[Citrullin]

Changing privileged_without_host_devices from true to false does the job.

[plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc]
  privileged_without_host_devices = false