Comment # 5 on bug 1172292 from Jiri Slaby

(In reply to Gary Ching-Pang Lin from comment #4)
> Yeah, it's a feature, and it would need some changes in shim, grub2, and
> even yast.

And installation-media, of course ;).

FWIW installation step is quite easy: grub from grub2-i386-efi works just fine,
it can load already present grub.cfg just fine (I tested this on a mixed-mode
machine some time ago). So it only needs to be placed on the media (as
bootia32.efi).

Then yast needs to install grub2-i386-efi if it detects mixed-mode during the
installation. That can be done by reading /sys/firmware/efi/fw_platform_size.

I haven't tested secure boot, we do not provide shim32 for x86_64, AFAIK.