using 5.0.1 lx08 + lp08 (and now also lx21 + lp21) installed, it is possible to select CGL kernel + stand file system for qemux86 which is not supported and therefore build will likely fail. The GUI should allow selection of supported combinations only. see attached screen shot
select a supported combination
- install lx08/21 - install lp08/21 - install WB334, DVD08 or DVD15