Subject: bug#47889: [installer image] grub-install efi fails getting canonical path to /boot/efi on dos-formatted disk

From: "pelzflorian (Florian Pelz)" <[email-masked]>
Date: Fri, 23 Apr 2021 13:12:11 +0200

On Fri, Apr 23, 2021 at 12:39:13PM +0200, Ludovic Courtès wrote:
> The installer determines whether it’s doing a UEFI installation like so:
> 
>   (define (efi-installation?)
>     "Return #t if an EFI installation should be performed, #f otherwise."
>     (file-exists? "/sys/firmware/efi"))
> 
> It uses that to determine whether to create an EFI System Partition
> (ESP) and whether to use ‘grub-efi-bootloader’.
> 
> Did it create an ESP in your case?

No, not on a DOS layout, only on GPT layout.  I think DOS should not
be allowed in auto partitioning (which would be the safer option) or
an ESP should be created on DOS as well.

Regards,
Florian