Re: [9front] bad opcode from vga/realemu on NUC7CJYH after UEFI boot

[Silas McCroskey <inkswinc@gmail.com>]

Thanks, I'll take a look at those options. Think I'll start with
trying to get the native driver to work since I've never managed to
puzzle that out (always been content with vesa), so it'll be a good
exercise.

- sam-d

On Wed, May 6, 2020 at 10:08 AM <cinap_lenrek@felloff.net> wrote:
>
> there is no vesa bios on pure uefi systems (without CSM). so realemu
> traps when executing all zero bytes as instructions.
>
> bootx64.efi does not set any mode (yet). it queries the mode set up
> by uefi firmware (according to the standard it is supposed to give you
> the native resolution and it sais like at least 1024x768 but nope.
> this is all pure sabotage to force you to install the windows driver
> so they can stay resident on your machine and expose ther cooperate
> branding).
>
> anyway, your guessing is not too far off. we could actually add
> code to 9boot to try to set a specific mode and hope that it maybe
> work... i dont know how well this works or if they even let you do
> that.
>
> another way would be to use this grub operating system, which i think
> can set specific graphics mode and load the plan9 kernel from that
> as a multiboot kernel image.
>
> or try to get the native driver to work. intel graphics is supported
> (partially, not every models, but might not be hard to add support?)
>
> good luck.
>
> --
> cinap