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Re: I need Dual Legacy EFI help

From: Pascal Hambourg
Subject: Re: I need Dual Legacy EFI help
Date: Mon, 13 May 2019 17:43:59 +0200
User-agent: Mozilla/5.0 (X11; Linux i686; rv:60.0) Gecko/20100101 Thunderbird/60.6.1

Sorry for the late answer.

Le 05/05/2019 à 11:11, ToddAndMargo a écrit :

I have a Fedora 30 flash drive set up for dual booting
from Legacy or UEFI.  It need to be able to boot from any
and all computers.
Remaking grub.cfg, I get

    # grub2-mkconfig -o /boot/grub2/grub.cfg
    Generating grub configuration file ...
    Adding boot menu entry for EFI firmware configuration

Uhhhhh.. I wanted legacy, not EFI.

It should not matter. In Debian, grub.cfg files generated in legacy and EFI mode are very similar (at least for Linux boot entries).

Are there major differences in Fedora ?

How do I trick grub2-mkconfig to make me a Legacy boot
when I am booted into EFI?

You can try to boot with the "noefi" kernel parameter.
Or unmount pstore and efivar filesystems and unload efi kernel modules.

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