minikube with KVM

Linux PCでvm driverをKVMとしてminikubeを使っているが、PCの再起動後は、クラスターを削除しないと'minikube-net'が見つからずクラスターが起動しない。

 $ minikube start
Starting local Kubernetes v1.10.0 cluster...
Starting VM...
E0613 22:22:13.299591    4647 start.go:159] Error starting host: Error starting stopped host: Error creatin
g VM: virError(Code=55, Domain=19, Message='Requested operation is not valid: network 'minikube-net' is not
active').

Retrying.
E0613 22:22:13.299757    4647 start.go:165] Error starting host:  Error starting stopped host: Error creati
ng VM: virError(Code=55, Domain=19, Message='Requested operation is not valid: network 'minikube-net' is no
t active')
================================================================================
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]:

こうなってしまったら、minikube deleteしてから、minikube startしている。そこまで不便ではない。