--bootstrap-ca-cert=db:SSL,ca_cert \
--pidfile --detach
+(If you built Open vSwitch without SSL support, then omit
+--private-key, --certificate, and --bootstrap-ca-cert.)
+
Then initialize the database using ovs-vsctl. This is only
necessary the first time after you create the database with
ovsdb-tool (but running it at any time is harmless):