could not translate host name "postgresql" to address: Name or service not known
Couldn't create database for {"adapter"=>"postgresql", "encoding"=>"utf-8", "database"=>"homeland", "username"=>"postgres", "password"=>"vagrant", "host"=>"postgresql", "port"=>5432, "pool"=>64}
rails aborted!
postgresql 需要另外搭建吗?还是使用 sudo make install 时就会创建 postgresql 实例并启动?