Bug#740503: debian-installer: check-missing-firmware does not work with a USB drive that contains a partition table

[Kjö Hansi Glaz <kjo@a4nancy.net.eu.org>]

Package: debian-installer
Version: stretch-alpha8-amd64
Followup-For: Bug #740503

Dear Maintainer,

   * What led up to the situation?

I followed the steps at
https://www.debian.org/releases/testing/amd64/ch06s04.html.en to put the
required firmware for installing over wifi.

   * What exactly did you do (or not do) that was effective (or
     ineffective)?

I put the USB stick containing FAT filesystem on its 1st partition, with
a firmware/ directory containing the contents of
http://cdimage.debian.org/cdimage/unofficial/non-free/firmware/testing/current/firmware.tar.gz

   * What was the outcome of this action?

The isntaller fails to load the firmware and proposes to try again over
and over.

   * What outcome did you expect instead?

The firmware to be loaded to continue installation over wifi.

Please note that the right firmware was there as unpacking it and
placing it in /lib/firmware manually worked.


-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (900, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.8.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)