Comment # 2 on bug 915098 from Olaf Hering

(In reply to Jiri Srain from comment #1)
> My guess: YaST only reinstalls bootloader if it is needed (it is not if you
> just e.g. change kernel parameters). Therefore you would need to touch some
> settings regarding where to install bootloader (its location).

But why would yast do that? If such thing happens during update of the kernel,
thats fine. But if I go to YaST I expect the full run: generate proper
grub.conf, generate proper grubenv, install grub to the configured location.
For short, do everything required that the system could start. I see no knobs
to force reinstall. And thats fine, there should be no such knob.