I use busybox. What I am missing are good error messages. Is there any log or better report for get suggestions what is wrong? It is a reduced collection and also reduced hints and helps. Sometimes for development is this grueling. Has anyone some hints to improve the debbuging technics or get better outputs? like "i miss lib **..so" on not only "file not found".
Check the configure options, there is an option to include verbose usage information (though this probably doesn't help with error messages).
there is an option Show verbose applet usage messages (FEATURE_VERBOSE_USAGE) All BusyBox applets will show more verbose help messages when busybox is invoked with --help. This will add a lot of text to the busybox binary. In the default configuration, this will add about 13k, but it can add much more depending on your configuration. I can use like cp --help This is not an error message.