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

[pelzflorian (Florian Pelz)]

On Sun, Apr 25, 2021 at 04:15:56PM +0200, Mathieu Othacehe wrote:
> Finally, grub-efi fails because there's no /boot/efi mount point.
> 
> This problem can then occur for two reasons:
> 
> 1. The user is booting the installation image with UEFI support, using
>   an empty installation device, choosing auto-partition and msdos as
>   disk type.
> 
> 2. The user is booting the installation image with UEFI support, using
>   an already msdos formatted installation device and choosing
>   auto-partition.
> 
> I think we could solve 1. easily, by forcing the GPT layout. Solving
> 2. is a bit trickier.

Can you force GPT also in 2.?  All disk partitions get removed anyway.
Arch wiki says MSDOS layout does not work on all EFI systems
<https://wiki.archlinux.org/index.php/EFI_system_partition#Create_the_partition>.

Regards,
Florian