MongoDB Upgrade to 3.0: HostAndPort Exception
The error/exception is because you point to a local database with --configdb. That should be a serverip:port:

##shards/replicas:
mongod --shardsvr --replSet ReplName --dbpath /data/mongodb (--port 27018) --logpath /data/log/log.log ...
##configservers:
mongod --configsvr --dbpath /data/cfg (--port 27019) --logpath /data/log/log.cfg
##mongos routers:
mongos --configdb cfg1IP:cfg1PORT,cfg2IP:cfg2PORT,cfg3IP:cfg3PORT (--port 27017) --logpath /data/log/log.mongos


Or you can use a configuration file.

But here you seem to mix the configuration for configservers with mongos-routers.