Bug#951198: flash-kernel: prevents installing new kernels on unsupported platforms

[Uwe Kleine-König <ukleinek@debian.org>]

Package: flash-kernel
Version: 3.99
Severity: normal

Hello,

I just upgraded my Debian installation from an older testing to Buster
and the kernel update failed with:

	Setting up initramfs-tools (0.133+deb10u1) ...
	update-initramfs: deferring update (trigger activated)
	Processing triggers for initramfs-tools (0.133+deb10u1) ...
	update-initramfs: Generating /boot/initrd.img-4.16.0-2-armmp
	Unsupported platform.
	run-parts: /etc/initramfs/post-update.d//flash-kernel exited with return code 1
	dpkg: error processing package initramfs-tools (--configure):
	 installed initramfs-tools package post-installation script subprocess returned error exit status 1
	Errors were encountered while processing:
	 initramfs-tools
	E: Sub-process /usr/bin/dpkg returned an error code (1)

In my case flash-kernel is just casually installed and not needed to
make the machine bootable with the new kernel. I wonder if "Unsupported
platform" should not be an error in the kernel update trigger.

Best regards
Uwe

-- System Information:
Debian Release: 10.3
  APT prefers stable
  APT policy: (900, 'stable'), (800, 'oldstable'), (600, 'unstable'), (1, 'experimental')
Architecture: armhf (armv7l)

Kernel: Linux 5.6.0-rc1-00042-g9988e8107902-dirty (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages flash-kernel depends on:
ii  debconf [debconf-2.0]  1.5.71
ii  devio                  1.2-1.2+b1
ih  initramfs-tools        0.133+deb10u1
ii  linux-base             4.6
ii  mtd-utils              1:2.0.1-1
ii  ucf                    3.0038+nmu1

Versions of packages flash-kernel recommends:
ii  u-boot-tools  2019.01+dfsg-7

flash-kernel suggests no packages.

-- debconf information excluded