ovs-sandbox: Initialize database before starting ovs-vswitchd.

Otherwise ovs-vswitchd can't immediately start working (until some other
call to ovs-vsctl initializes the database).  This is most obvious if one
runs "ovs-vsctl list Open_vSwitch ." as the first command, because the
output will not show the changes that ovs-vswitchd will make to the
database at startup (in particular initializing datapath_types and
iface_types), which is confusing.

Signed-off-by: Ben Pfaff <[email protected]>
Acked-by: Russell Bryant <[email protected]>

tutorial/ovs-sandbox

@@ -1,6 +1,6 @@
 #! /bin/sh
 #
-# Copyright (c) 2013 Nicira, Inc.
+# Copyright (c) 2013, 2015 Nicira, Inc.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -235,6 +235,9 @@ run ovsdb-tool create conf.db "$schema"
 rungdb $gdb_ovsdb ovsdb-server --detach --no-chdir --pidfile -vconsole:off --log-file \
     --remote=punix:"$sandbox"/db.sock
 
+# Initialize database.
+run ovs-vsctl --no-wait -- init
+
 # Start ovs-vswitchd.
 rungdb $gdb_vswitchd ovs-vswitchd --detach --no-chdir --pidfile -vconsole:off --log-file \
     --enable-dummy=override -vvconn -vnetdev_dummy