Hello!
I have been writing my OS for a few years now, and I think it is high time to switch it to graphic mode. I wanted to use Grub in order to give it a more modern aspect.
So I wanted to use the graphical capabilities described in the multiboot section. But if I set the bit number 2 in the flag field, Grub refuses to load the kernel. mbcheck says that reserved fields are nonzero.
Has anybody tried to use the VESA functionalities in Grub? Is that a bug?
Of course, I can choose not to set this flag, but in this case, the flag bit number eleven in the boot information structure is set to 0.
I can't find anything related to that on Google, and I think there is an inconsistency in the manual.
Maybe this is important: my developping/testing mchine is running FreeBSD with an NVidia card, and I use qemu in order to test my kernels.