Re: Is there a way to get the architecture of the machine just booted up by GRUB2: [32|64]-[amd|arm]? ...

[Andrei Borzenkov]

On 17.12.2023 14:08, Albretch Mueller wrote:
> On 12/17/23, Pascal Hambourg <pascal@plouf.fr.eu.org> wrote:
> > On 17/12/2023 à 10:21, Albretch Mueller wrote:
> > >    Imagine a multiboot environment started by a LIVE DVD which contains
> > > the iso for various architectures if GRUB2 had a way to discern the
> > > architecture, it would then pick the correct iso and get it from
> > > there.
> >
> > If the media can boot on various architectures, it must contain GRUB
> > instances for all supported architectures. and the GRUB instance
> > matching the firmware architecture will be booted.
>
>   To make sure that we are on the same page and I totally understand you.
>
>   Say I burn a DVD with the debian bootable iso (the live DVD) for
> amd64, arm64 and 64-bit risc-v processors, will GRUB2 automatically
> detect the architecture and pick the file?, or, as I suspect, you will
> have to cook some configuration file?

Now explain, how grub compiled for rsic-v is going to run on amd64 to 
decide anything.

It is up to the firmware to select the correct boot image that this 
firmware expects.

>   Any examples or leading information about such GRUB2, multi-boot off
> a live DVD "prior art", "trodden path ways"?
>
>   lbrtchx