Re: BIOS_grub GUID signature within an EFI partition?

[Pascal Hambourg]

> On Tue, Sep 12, 2023 at 11:41 AM Moses Gold <mosesogold@gmail.com> wrote:
>
> > Looks like sector one of the drive is just part of the GPT
> > partition table scheme and not an EFI partition itself.

Correct. Sector 1 contains the main GPT header.

> > Sector 2 looks like
> > the beginning of the BIOS boot partition with the grub GUID signature,

Not quite. Sector 2 contains the begining of the main GPT partition 
table (partition entries).

> > though the partitioning software (gdisk, and gparted) state that partition
> > 1 starts at sector 2048.

Because this is where the partition contents actually starts.

> > The partition at sector 2048 has an EFI directory
> > structure, and includes the grubx64.efi file.

Then this is plain wrong. Such partition should have the "EFI system 
partition" GUID, not "BIOS boot" GUID.