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bug#35380: disk-image fails to install efi grub

From: Ludovic Courtès
Subject: bug#35380: disk-image fails to install efi grub
Date: Wed, 01 May 2019 22:19:58 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.2 (gnu/linux)

Hi rendaw,

rendaw <address@hidden> skribis:

> On 4/25/19 5:44 PM, Ludovic Courtès wrote:


>> Exactly: currently QEMU is run with a plain old BIOS, and not with the
>> UEFI firmware, so what you want is not implemented yet (see the comment
>> in gnu/system/vm.scm:799).
>> I’m closing this bug, but you can open a wishlist item about it if you
>> want!
>> Thanks,
>> Ludo’.
> I'm not going to comment on the wishlist thing, but this seems like a
> fairly huge problem:
> 1. The documentation doesn't mention this anywhere!  Not in the
> bootloader docs, not in the disk-image docs, not in the "limitations",
> not in "hardware considerations"
> 2. I've spent several _days_ now digging through Guix source code and
> never found that message. 

I’m sorry to hear that.  I guess that the reason the documentation
doesn’t mention it is that users didn’t find it all that important.
My guess is that to many of us, using a VM is a way to test an OS, and
it doesn’t matter in that context whether the emulated machine uses a PC

I understand that it does matter in some cases, so I agree we should
support it.  I don’t know exactly what it would take, but if you have
ideas, they’d be welcome.

> 3. The build still completes with a successful exit code.  The only way
> to find out the image doesn't have a bootloader (-> is unusable) is to
> try to boot it

Yes, that’s an unfortunate bug reported here:


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