On Sat, Mar 28, 2015 at 5:27 PM, Barry Jackson <[email protected]> wrote:
> Hi,
> In PC-BIOS I have always used a separate partition with it's own install
> of grub2 to boot into core.img of various grub2 based linux installations.
>
> I am now trying to do the same with UEFI and have hit several issues.
>
> grub2-install --grub-setup=/bin/true /dev/sda4
> under PC-BIOS only installs grub2 to the grub2 directory with a copy of
> core.img in grub2/i386-pc/
>
> Under UEFI this also makes changes in the ESP by copying
> /boot/grub2/x86_64-efi/core.efi as /boot/EFI/EFI/<vendor>/grubx64.efi
> overwriting the existing one.
>
> How can I stop this happening?
>
> Also, when I try to boot core.efi from another grub2 menu using something
> like:
>
> menuentry 'Mageia-KDE sda4' {
> search --no-floppy --label --set=root KDEMga4
> multiboot /boot/grub2/x86_64-efi/core.efi
>
core.efi is efi not multiboot.
> }
>
> I get an error: no multiboot header found
>
> Any help would be much appreciated.
>
> Thanks,
> Barry
>
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