that's what kept Solaris from being open sourced for years. There's a talk by Bryan Cantrill about that. They basically could not provide a fully functional O

that's what kept Solaris from being open sourced for years. There's a talk by Bryan Cantrill about that. They basically could not provide a fully functional OS because some marginal yet used-everywhere parts where licensed and proprietary (Bryan cites the internationalization library as an example).