Hi Norman,
thanxs, the freeze was exactly that qemu was showing the UI but nothing reacted. Using display sdl option helped.
I figured that the hello-tutorial may actually not be the easiest way to start as it contains many details that are not needed for realizing applications on top of Genode.
For creating your very first program, it would probably be better to inspect an even simpler scenario such as 'run/printf'. You can find the corresponding run script at 'base/run/printf.h' and the source code and target.mk file for the program at 'base/src/test/printf/'. Once you got comfortable with modifying and running it, start to explore to other run scripts. Also, do not hesitate to look under the hood of the run tool to learn how it works. (e.g., what happens when a command 'build_boot_image' is invoked?) The run tool is actually a script to be found at 'tool/run'. The platform-specific parts are located at 'base-<platform>/run/env'.
Will try it out as soon as i have time. Maybe a side question. on http://genode.org/documentation/developer-resources/build_system it is stated that every custom source code repository will need a "lib/mk" folder. But i have not seen if there needs to be something manually inserted in the folder?
Best regards, Wolfgang