(Ubuntu 16.04, non-UEFI) package shim-signed 1.19~16.04.1+0.8-0ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[arnim kracht]

hi
i tried to download clam tk and the bug warning appeared
i hope that i have ticked the security button therefore correctly
with kind regards
a. kracht

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: shim-signed 1.19~16.04.1+0.8-0ubuntu2
ProcVersionSignature: Ubuntu 4.4.0-57.78-generic 4.4.35
Uname: Linux 4.4.0-57-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.4
Architecture: amd64
BootEFIContents:
 fw
 fwupx64.efi
Date: Sun Jan 1 13:30:15 2017
DpkgHistoryLog:
 Start-Date: 2017-01-01 13:30:08
 Commandline: aptdaemon role='role-install-packages' sender=':1.61'
 Install: libjson-perl:amd64 (2.90-1, automatic), libtext-csv-xs-perl:amd64 (1.21-1, automatic), gnome-icon-theme:amd64 (3.12.0-1ubuntu3, automatic), libjson-xs-perl:amd64 (3.010-2build1, automatic), gir1.2-nautilus-3.0:amd64 (1:3.18.4.is.3.14.3-0ubuntu5, automatic), libtext-csv-perl:amd64 (1.33-1, automatic), libmspack0:amd64 (0.5-1, automatic), clamav:amd64 (0.99.2+dfsg-0ubuntu0.16.04.1, automatic), clamtk:amd64 (5.20-1, automatic), libtypes-serialiser-perl:amd64 (1.0-1, automatic), clamav-freshclam:amd64 (0.99.2+dfsg-0ubuntu0.16.04.1, automatic), libcommon-sense-perl:amd64 (3.74-1build1, automatic), clamav-base:amd64 (0.99.2+dfsg-0ubuntu0.16.04.1, automatic), libclamav7:amd64 (0.99.2+dfsg-0ubuntu0.16.04.1, automatic), python-nautilus:amd64 (1.1-4, automatic), clamtk-gnome:amd64 (5.20-1), libllvm3.6v5:amd64 (1:3.6.2-3ubuntu2, automatic)
DuplicateSignature:
 package:shim-signed:1.19~16.04.1+0.8-0ubuntu2
 Setting up grub-efi-amd64-signed (1.66.2+2.02~beta2-36ubuntu3.2) ...
 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 1.2.15ubuntu0.2
SourcePackage: shim-signed
Title: package shim-signed 1.19~16.04.1+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)

[Steve Beattie (sbeattie)]

Thanks for taking the time to report this bug and helping to make Ubuntu better. We appreciate the difficulties you are facing, but this appears to be a "regular" (non-security) bug. I have unmarked it as a security issue since this bug does not show evidence of allowing attackers to cross privilege boundaries nor directly cause loss of data/privacy. Please feel free to report any other bugs you may find.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.