Erro ao rodar minikube start

Estou com dificuldade em rodar o comando minikube start. Ele fica "parado" em Starting cluster components... e depois estoura um erro:

rodrigo@rodrigo-Aspire-ES1-572:~$ minikube start
Starting local Kubernetes v1.10.0 cluster...
Starting VM...
Downloading Minikube ISO
 153.08 MB / 153.08 MB [============================================] 100.00% 0s
Getting VM IP address...
Moving files into cluster...
Downloading kubeadm v1.10.0
Downloading kubelet v1.10.0
Finished Downloading kubelet v1.10.0
Finished Downloading kubeadm v1.10.0
Setting up certs...
Connecting to cluster...
Setting up kubeconfig...
Starting cluster components...
E0630 13:30:29.211510   12611 start.go:294] Error starting cluster:  kubeadm init error sudo /usr/bin/kubeadm init --config /var/lib/kubeadm.yaml --ignore-preflight-errors=DirAvailable--etc-kubernetes-manifests --ignore-preflight-errors=DirAvailable--data-minikube --ignore-preflight-errors=Port-10250 --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-kube-scheduler.yaml --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-kube-apiserver.yaml --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-kube-controller-manager.yaml --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-etcd.yaml --ignore-preflight-errors=Swap --ignore-preflight-errors=CRI  running command: : running command: sudo /usr/bin/kubeadm init --config /var/lib/kubeadm.yaml --ignore-preflight-errors=DirAvailable--etc-kubernetes-manifests --ignore-preflight-errors=DirAvailable--data-minikube --ignore-preflight-errors=Port-10250 --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-kube-scheduler.yaml --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-kube-apiserver.yaml --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-kube-controller-manager.yaml --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-etcd.yaml --ignore-preflight-errors=Swap --ignore-preflight-errors=CRI 
.: Process exited with status 1
================================================================================
An error has occurred. Would you like to opt in to sending anonymized crash
information to minikube to help prevent future errors?
To opt out of these messages, run the command:
    minikube config set WantReportErrorPrompt false
================================================================================
Please enter your response [Y/n]:

rodrigo@rodrigo-Aspire-ES1-572:~$ minikube delete
Deleting local Kubernetes cluster...
Machine deleted.

rodrigo@rodrigo-Aspire-ES1-572:~$ rm -rf ~/.minikube

rodrigo@rodrigo-Aspire-ES1-572:~$ uname -a
Linux rodrigo-Aspire-ES1-572 4.13.0-45-generic #50~16.04.1-Ubuntu SMP Wed May 30 11:18:27 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

rodrigo@rodrigo-Aspire-ES1-572:~$ minikube version
minikube version: v0.28.0

Poderia me ajudar? Já pesquisei em vários lugares e ainda não consegui solucionar...