Minikube: Error setting up kubeconfig: open /etc/kubernetes/admin.conf: permission denied

[nicedudu]

Is this a BUG REPORT or FEATURE REQUEST? (choose one):

Please provide the following details:

Environment:

Minikube version (use minikube version):
Minikube version: v0.30.0

• OS (e.g. from /etc/os-release):
  MacOS
• VM Driver (e.g. cat ~/.minikube/machines/minikube/config.json | grep DriverName): DriverName: virtualbox
• ISO version (e.g. cat ~/.minikube/machines/minikube/config.json | grep -i ISO or minikube ssh cat /etc/VERSION):
  v0.30.0
• Install tools:
• Others:
  The above can be generated in one go with the following commands (can be copied and pasted directly into your terminal):

minikube version
echo "";
echo "OS:";
cat /etc/os-release
echo "";
echo "VM driver:"; 
grep DriverName ~/.minikube/machines/minikube/config.json
echo "";
echo "ISO version";
grep -i ISO ~/.minikube/machines/minikube/config.json

What happened:

Error setting up kubeconfig: writing kubeconfig: Error writing file /etc/kubernetes/admin.conf: open /etc/kubernetes/admin.conf: permission denied

What you expected to happen:

How to reproduce it (as minimally and precisely as possible):
minikube start

Output of minikube logs (if applicable):

minikube start
Starting local Kubernetes v1.10.0 cluster...
Starting VM...
Getting VM IP address...
Moving files into cluster...
Setting up certs...
Connecting to cluster...
Setting up kubeconfig...
E1204 16:22:17.065015    1904 start.go:289] Error setting up kubeconfig:  writing kubeconfig: Error writing file /etc/kubernetes/admin.conf: open /etc/kubernetes/admin.conf: permission denied
E1204 16:22:33.270954    1904 util.go:151] Error uploading error message: : Post https://clouderrorreporting.googleapis.com/v1beta1/projects/k8s-minikube/events:report?key=AIzaSyACUwzG0dEPcl-eOgpDKnyKoUFgHdfoFuA: read tcp 192.168.0.102:64284->172.217.24.42:443: read: connection reset by peer

Anything else do we need to know:

[tstromberg]

/etc/kubernetes/admin.conf seems like a strange value for kubeconfig to be writing to.

Do you happen to have KUBECONFIG=/etc/kubernetes/admin.conf set in your environment?