[Bug 1517582] Re: flash-kernel causes postinsts to fail when it happens to be installed on an unsupported system

[Newell Jensen]

It should be noted that the upstream patch does not make it so you
cannot enable a UEFI system.  The patch works like this:

If the machine is found to be unsupported (i.e. is not added to the
all.db file for supported or no-op), it then checks if the system is EFI
and if it is, it prints a warning and exits instead of erroring out.

Thus, we can still have f-k for UEFI systems if the system is added as a
supported device in all.db.

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https://bugs.launchpad.net/bugs/1517582

Title:
  flash-kernel causes postinsts to fail when it happens to be installed
  on an unsupported system

Status in flash-kernel package in Ubuntu:
  Fix Released

Bug description:
  For xgene-2 soc on EFI system, flash-kernel is failing:

  Unsupported platform.
  run-parts: /etc/initramfs/post-update.d//flash-kernel exited with return code 1
  dpkg: error processing package initramfs-tools (--configure):
   subprocess installed post-installation script returned error exit status 1
  Processing triggers for ureadahead (0.100.0-16) ...
  Processing triggers for ufw (0.34~rc-0ubuntu2) ...
  Errors were encountered while processing:
   initramfs-tools

  
  1) The release of Ubuntu you are using, via 'lsb_release -rd' or System -> About Ubuntu

  This error surfaced during the deployment of a Wily MAAS arm64 daily
  cloud image.  http://cloud-images.ubuntu.com/daily

  2) The version of the package you are using, via 'apt-cache policy
  pkgname' or by checking in Software Center

  I mounted the root-image that MAAS and overlayroot use as the
  OverlayFS.  I located the changlog for flash-kernel and found the
  package information below:

  flash-kernel (3.0~rc.4ubuntu55) wily

  3) What you expected to happen

  I expected that postinsts would not fail.

  4) What happened instead

  postinsts failed.

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