opensuse 11.2 autoyast trouble

I am trying to create an xml file with autoyast to replicate my installation on the same type on computer and this many time.

I have bootloader trouble.
when I clone the booloader conf from my pc, it appears not be exactly the same parameter I see on my and on autoyast bootloader section.

if I try the generated xml file either with the same conf or the one copied from the excat bootloader situation of my pc, in both case, it does work.
The installation seems to be ok
the pc reboot, i see the menu, i click on my choice, it start the boot and it stops after trying to start the run level 5 and then reboot

thanks for path or advice