Bug#1122921: debian-installer: doesn't install fsck.vfat even on EFI systems, which have a vfat ex def and explicitly enable fscking it in fstab

[Pascal Hambourg <pascal@plouf.fr.eu.org>]

Hi,

On 14/12/2025 at 18:35, Cyril Brulebois wrote:
> наб <nabijaczleweli@nabijaczleweli.xyz> (2025-12-14):
> > I recently installed trixie on an EFI amd64 system.
(...)
> > And yet! I don't have a fsck.vfat, so it doesn't get checked, ever.
(...)
> But from a quick look, I think this should be happening already?
>
>      commit 859ba462b5b1fc4e2c2a654a7263856905af51ce (tag: 163)
>      Author: Steve McIntyre <steve@einval.com>
>      Date:   Mon May 15 22:59:30 2023 +0100
>      
>          Install dosfstools if we have a FAT ESP
AFAICS detected_filesystem is updated only when init.d/* scripts are 
executed, not when the partition is formatted. As a result, it is not 
always updated after a partition is formatted.

For example it is updated when using LVM after creating the EFI 
partition (because LVM setup executes init.d/* scripts) but not when 
using plain partitions.