[Bug 1525393] Re: xenial secureboot images not signed

[Steve Langasek]

This has been tracked down to a mis-build of debian-installer, caused by
a network blip leading to wget to fail to grab the correct grub-signed
bits from the Ubuntu archive.

A simple rebuild of d-i and the image will correct the problem.  But the
d-i code should also be improved to treat a failing wget here as a build
failure.

** Also affects: debian-installer (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: debian-installer (Ubuntu)
       Status: New => Triaged

** Changed in: debian-installer (Ubuntu)
     Assignee: (unassigned) => Adam Conrad (adconrad)

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https://bugs.launchpad.net/bugs/1525393

Title:
  xenial secureboot images not signed

Status in Ubuntu CD Images:
  Fix Committed
Status in debian-installer package in Ubuntu:
  Triaged

Bug description:
  When I try to run sbverify on EFI/BOOT/BOOTx64.EFI on current xenial desktop amd64 images, I get:
  No signature table present
  Unable to read signature data from /home/max/mount.d/EFI/BOOT/BOOTx64.EFI
  Signature verification failed

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