[Bug 1590354] Re: package shim-signed 1.12+0.8-0ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Steve Langasek]

You appear to be installing the shim-signed package in error on a non-
UEFI system.  The error message from 'grub-install' shows that grub-
install has autodetected your system as running a PC BIOS, not UEFI and
is thus trying to install the BIOS version of GRUB which it then does
not find on your system.  You probably need to run 'apt install grub-pc'
to correct this.

** Changed in: shim-signed (Ubuntu)
       Status: New => Invalid

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Title:
  package shim-signed 1.12+0.8-0ubuntu2 failed to install/upgrade:
  subprocess installed post-installation script returned error exit
  status 1

Status in shim-signed package in Ubuntu:
  Invalid

Bug description:
  Trying to install a windows emulator for .exe files

  ProblemType: Package
  DistroRelease: Ubuntu 16.04
  Package: shim-signed 1.12+0.8-0ubuntu2
  ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8
  Uname: Linux 4.4.0-22-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  BootEFIContents:
   fw
   fwupx64.efi
  Date: Wed Jun  8 11:57:01 2016
  DuplicateSignature:
   Setting up grub-efi-amd64-signed (1.66+2.02~beta2-36ubuntu3) ...
   grub-install: error: /usr/lib/grub/i386-pc/modinfo.sh doesn't exist. Please specify --target or --directory.
   dpkg: error processing package grub-efi-amd64-signed (--configure):
    subprocess installed post-installation script returned error exit status 1
  EFIBootMgr: Error: command ['efibootmgr', '-v'] failed with exit code 2: efibootmgr: EFI variables are not supported on this system.
  ErrorMessage: subprocess installed post-installation script returned error exit status 1
  RelatedPackageVersions:
   dpkg 1.18.4ubuntu1.1
   apt  1.2.10ubuntu1
  SourcePackage: shim-signed
  Title: package shim-signed 1.12+0.8-0ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
  UpgradeStatus: No upgrade log present (probably fresh install)

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