Hi Martin, I can find no change that causes a change in the behaviour for that between 5.8.1 and the newest FAI version. As you pointed out an "exit X" in a .sh script causes fai-class to stop defining more classes. You can try to set an error code inside a .sh file by using a call to task_error xxx. I'm not sure if this will work, since fai-class runs in a subprocess. After looking into the code it seems that fai-class almost always ends with exit 0.
-- regards Thomas
