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Re: Single grub.cfg For BIOS and EFI

From: Marc Smith
Subject: Re: Single grub.cfg For BIOS and EFI
Date: Mon, 13 Feb 2017 08:59:03 -0500

Thank you both for the quick reply. Pascal's response with the
${grub_platform} variable is exactly what I was looking for. As for
the modules, the ones in question were "vbe" (specific to BIOS I
believe) and the efi_* modules. I also only wanted to load the font
stuff for EFI, so this works out perfectly.

Thanks again.


On Sun, Feb 12, 2017 at 11:41 AM, Andrei Borzenkov <address@hidden> wrote:
> 12.02.2017 18:47, Pascal Hambourg пишет:
>> Le 12/02/2017 à 15:49, Marc Smith a écrit :
>>> In my Linux distro, I'm using a single grub.cfg and the user can boot
>>> in either BIOS or EFI mode. However, some modules are specific to EFI,
>>> and some to BIOS it appears.
> It would be helpful if you gave more details which modules you need.
> GRUB tries to be compatible across platforms as far as booting is
> concerned, so single grub.cfg can be reused. There are always
> platform-dependent modules, but they usually are not needed for booting.
>>> Is there a way to test if we're "running" in EFI or BIOS mode in
>>> grub.cfg and then use that to make a decision on what modules to load?
>> See the $grub_platform environment variable.
>> Its value is 'pc' for BIOS and 'efi' for EFI.
>> However I have used the same config file (generated by
>> update-grub/grub-mkconfig) with both GRUB BIOS and GRUB EFI without any
>> visible issue.
>> _______________________________________________
>> Help-grub mailing list
>> address@hidden

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