@Sebastian-Roth Can you tell me how I can debug the iPXE? Is here a manual?

@Sebastian-Roth That’s with the BIOS doesn’t work.
I compiled the Kernel with the debug now. In the eboot.c ist this the line where it stops.

    status = exit_boot(boot_params, handle);

@Sebastian-Roth I built the kernel, but the same. What is the next step?
By the way, thanks for your help.

@dpusser_CMS Do you have a solution for your problem? I’ve now exactly the same. Since three days I’m testing but can’t find the problem. The x1 loads the init.xz and than the screen are going black, that’s it.