+ -C **CONFIGURATION_FILE**::
+
+The specified file is used as configuration file for grml-live. By default
+/etc/grml/grml-live.conf is used for main configuration. If a file named
+/etc/grml/grml-live.local exists it is used as well (sourced after reading
+/etc/grml/grml-live.conf to allow overriding settings). As a last option the
+specified configuration file is sourced so it is possible to override settings
+of /etc/grml/grml-live.conf as well as of /etc/grml/grml-live.local. Please
+notice that all configuration files have to be adjusted during execution of
+grml-live, so please make sure you use /etc/grml/grml-live.conf as a base for
+your own configuration file. Please also notice that the configuration file
+specified via this option is **not** (yet) supported inside the
+scripts/hooks/classes at /etc/grml/fai/config. Instead use
+/etc/grml/grml-live.conf and/or /etc/grml/grml-live.local for configuration
+stuff used inside /etc/grml/fai/config.
+