In order to change any variables influencing the bootprocess use the following commands:

setparameter:   sets a given parameter    (parameters are: name, value)
getparameter:   gets a given parameter    (parameters are: name)
listparameters: lists all set parameters  (parameters are: none)
delparameter:   deletes a given parameter (parameters are: name)
help:           show this help            (parameters are: none)
lastmessage:    show the last message     (parameters are: none)
messages:       list all messages         (parameters are: none)

Use these methods with care as they might influence the bootprocess and lead to 
unpreditable behaviours.
