HEAD-1361 upgrade: headnode.sh dies on 6.5.x /usbkey/datasets load
HEAD-1361 upgrade: headnode.sh dies on 6.5.x /usbkey/datasets load

kaizengarden/sdc-headnode,joyent/sdc-headnode,numericillustration/sdc-headnode,joyent/sdc-headnode,joyent/sdc-headnode,numericillustration/sdc-headnode,joyent/sdc-headnode,kaizengarden/sdc-headnode,kaizengarden/sdc-headnode,numericillustration/sdc-headnode,kaizengarden/sdc-headnode