[syslinux] simple message under BIOS/CSM/LEGACY

[Pascal]

*"Do you have indications..."* : no, it's just Gregory's words (see the
thread) that suggest this behavior and that engaged me towards this hack.

I unfortunately don't have the PCs that caused the problem to be able to do
real tests.

reading all the feedback, I wonder if I will not simply abandon the GPT
partitioning and switch to a DOS partitioning which remains fully
operational under UEFI...

Le mer. 3 août 2022 à 23:06, Thomas Schmitt via Syslinux <
syslinux at syslinux.org> a écrit :

> Hi,
>
> Pascal wrote:
> > the purpose of these two zero values is to confuse the PBR with the MBR
> (in
> > case the "bugged" BIOS tries to load the PBR directly without using the
> > MBR).
>
> With these values it is not a Protective MBR as of UEFI 2.8 5.2.3.
> So it is not guaranteed that EFI implementations will recognize the GPT
> and find the EFI System Partition.
>
> Do you have indications that really PC-BIOS implementations are around
> which load and execute the partition/volume boot record on their own ?
> (As already stated, i only know of chainloading from MBR code to PBR code.
> But i also know only of ISO 9660 booting situations. So now i'm curious.)
>
>
> Have a nice day :)
>
> Thomas
>
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