Re: Making an ISO that boot in UEFI

[Samuel Thibault]

Samuel Thibault, le dim. 07 févr. 2021 11:05:44 +0100, a ecrit:
> Paul Dufresne, le sam. 06 févr. 2021 20:32:28 -0500, a ecrit:
> > Did read: 
> > https://lists.gnu.org/archive/html/grub-devel/2021-02/msg00023.html
> > 
> > Line 20 of 
> > http://git.savannah.gnu.org/cgit/hurd/gnumach.git/tree/i386/i386at/boothdr.S
> > #define MULTIBOOT_FLAGS             0x00000003
> > 
> > Since bit 2, to request from the bootloader video information is not set, 
> > it seems reasonable that the bootloader knows you will not have a console
> > to see stuff.
> 
> As I already wrote: yes, mach assumes that the video card is in text
> mode.

Something that could be done is to add code to kdinit to reinitialize
the VGA card to text mode, then we can add the video flag in the
multiboot header (even if it'll actually just ignore it).

Samuel