GNU bug report logs -
#35380
disk-image fails to install efi grub
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Reported by: rendaw <7e9wc56emjakcm <at> s.rendaw.me>
Date: Mon, 22 Apr 2019 16:07:01 UTC
Severity: normal
Found in version 0.16.0
Done: Ludovic Courtès <ludo <at> gnu.org>
Bug is archived. No further changes may be made.
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rendaw <7e9wc56emjakcm <at> s.rendaw.me> writes:
> On 5/4/19 12:10 AM, Marius Bakke wrote:
>> rendaw <7e9wc56emjakcm <at> s.rendaw.me> writes:
>>
>>> On 5/3/19 7:17 AM, Marius Bakke wrote:
>>>> That means you can't just take an operating system hard drive from one
>>>> EFI system to another.
>>> I'm absolutely not an expert on UEFI, and it's likely I'm
>>> misinterpreting some of the more subtle points you wrote, but do you
>>> have more information on the NVRAM restriction? I've found a fair
>>> amount of references to making secure boot and UEFI capable media (USB
>>> and CD) around the web so I'm surprised it's not possible to make a
>>> portable UEFI image. Wouldn't that make it difficult to install UEFI
>>> bootloaders on blank systems?
>> To clarify: "grub-efi" will not work to make a portable UEFI
>> installation. For that you need "grub-mkstandalone" and place the
>> resulting executable in "/efi/boot/bootx64.efi" on your EFI System
>> Partition, like Guix does for disk images:
>> <https://git.savannah.gnu.org/cgit/guix.git/tree/gnu/build/vm.scm#n399>.
>>
>> It would be nice to make this procedure more generally accessible.
>> Perhaps create a (grub-standalone-bootloader ...) procedure, similar to
>> (grub-efi-bootloader)? Then it can be used to create portable EFI
>> systems straight from your config.scm.
>>
>> Would you like to give it a go?
> Ah thanks! I was indeed misunderstanding some of the subtleties in your
> previous post, and thanks for the pointers. Depending on how
> straightforward it is I might try my hand implementing it, time
> permitting, but it probably wouldn't be for at least a month due to
> other priorities.
Right, no worries! Improving the EFI support in Guix has been on my
TODO list for a couple of years now, so it's not very urgent ;-)
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