none: [ERROR Port-2380]: Port 2380 is in use

[Nit2879]

The exact command to reproduce the issue:
minikube start --vm-driver=none
The full output of the command that failed:

stderr:
W0323 06:56:07.655585 10307 validation.go:28] Cannot validate kube-proxy config - no validator is available
W0323 06:56:07.655707 10307 validation.go:28] Cannot validate kubelet config - no validator is available
[WARNING IsDockerSystemdCheck]: detected "cgroupfs" as the Docker cgroup driver. The recommended driver is "systemd". Please follow the guide at https://kubernetes.io/docs/setup/cri/
[WARNING Port-10250]: Port 10250 is in use
error execution phase preflight: [preflight] Some fatal errors occurred:
[ERROR Port-2380]: Port 2380 is in use
[preflight] If you know what you are doing, you can make a check non-fatal with --ignore-preflight-errors=...
To see the stack trace of this error execute with --v=5 or higher

The output of the minikube logs command:

The operating system version:

Ubuntu v18

[tstromberg]

What is listening on port 2380? The output of lsof -i :2380 would help.

It sounds like Kubernetes may already be running on this machine, but minikube is unaware of it's existence. Also, what version of minikube is this?

[tstromberg]

This issue appears to be a duplicate of #6425, do you mind if we move the conversation there?

Ths way we can centralize the content relating to the issue. If you feel that this issue is not in fact a duplicate, please re-open it using /reopen. If you have additional information to share, please add it to the new issue.

Thank you for reporting this!