[Bug 1736080] Re: package shim-signed 1.32~16.04.1+0.9+1474479173.6c180c6-1ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Steve Langasek]

On Thu, Dec 14, 2017 at 07:26:35AM -0000, Michele Polese wrote:
> This fixed it. Thank you very much!
> How's the /etc/fstab generated? Just to know if it's my fault for the wrong
> configuration or something was messed up during the setup.

The /etc/fstab is generated at boot time.  The line that you had uncommented
for /boot/efi was definitely not produced by the Ubuntu installer - even if
there were a bug that produced such a line, the installation would have
failed with that line present and the system would not have been bootable
afterwards.

Also, your bug report shows an installation date of 2016-11-21, and 'ls -l
/etc/fstab' showed a timestamp on the file of November 28.

So this must have been modified after the installation.  There is no
software in the standard Ubuntu install which would have made this change. 
It's possible there is some package present in the Ubuntu universe archive
which would make such a change - if so, we would be interested to know what
package that was, so that we could fix it.  Or you might have installed
third-party software which made this change, or followed some guide on the
Internet telling you to make such changes to the file.

If you do have any ideas how this happened, we would appreciate any
information you could provide, since it's a fairly common report that
/boot/efi is not correctly configured in /etc/fstab but we don't know why
users are ending up in this situation.

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Title:
  package shim-signed 1.32~16.04.1+0.9+1474479173.6c180c6-1ubuntu1
  failed to install/upgrade: subprocess installed post-installation
  script returned error exit status 1

Status in shim-signed package in Ubuntu:
  Incomplete

Bug description:
  See https://askubuntu.com/questions/948315/error-processing-package-
  shim-signed

  ProblemType: Package
  DistroRelease: Ubuntu 16.04
  Package: shim-signed 1.32~16.04.1+0.9+1474479173.6c180c6-1ubuntu1
  ProcVersionSignature: Ubuntu 4.4.0-101.124-generic 4.4.95
  Uname: Linux 4.4.0-101-generic x86_64
  NonfreeKernelModules: vtsspp sep4_1 socperf2_0 pax
  .proc.sys.kernel.moksbstate_disabled: 0
  ApportVersion: 2.20.1-0ubuntu2.13
  Architecture: amd64
  BootEFIContents:
   fw
   fwupx64.efi
  Date: Sat Dec  2 06:52:44 2017
  DpkgHistoryLog:
   Start-Date: 2017-12-02  06:52:36
   Commandline: /usr/bin/unattended-upgrade
   Upgrade: thunderbird-gnome-support:amd64 (1:52.4.0+build1-0ubuntu0.16.04.2, 1:52.5.0+build1-0ubuntu0.16.04.1), thunderbird-locale-en-gb:amd64 (1:52.4.0+build1-0ubuntu0.16.04.2, 1:52.5.0+build1-0ubuntu0.16.04.1), thunderbird-locale-en-us:amd64 (1:52.4.0+build1-0ubuntu0.16.04.2, 1:52.5.0+build1-0ubuntu0.16.04.1), firefox-locale-en:amd64 (57.0+build4-0ubuntu0.16.04.6, 57.0.1+build2-0ubuntu0.16.04.1), firefox-locale-it:amd64 (57.0+build4-0ubuntu0.16.04.6, 57.0.1+build2-0ubuntu0.16.04.1), thunderbird:amd64 (1:52.4.0+build1-0ubuntu0.16.04.2, 1:52.5.0+build1-0ubuntu0.16.04.1), firefox:amd64 (57.0+build4-0ubuntu0.16.04.6, 57.0.1+build2-0ubuntu0.16.04.1), thunderbird-locale-en:amd64 (1:52.4.0+build1-0ubuntu0.16.04.2, 1:52.5.0+build1-0ubuntu0.16.04.1), thunderbird-locale-it:amd64 (1:52.4.0+build1-0ubuntu0.16.04.2, 1:52.5.0+build1-0ubuntu0.16.04.1)
  EFITables:
   nov 27 10:15:11 pcsensori34 kernel: efi: EFI v2.40 by American Megatrends
   nov 27 10:15:11 pcsensori34 kernel: efi:  ACPI=0x87417000  ACPI 2.0=0x87417000  SMBIOS=0xf05e0  ESRT=0x87dfe598  MPS=0xfcba0 
   nov 27 10:15:11 pcsensori34 kernel: esrt: Reserving ESRT space from 0x0000000087dfe598 to 0x0000000087dfe5d0.
  ErrorMessage: subprocess installed post-installation script returned error exit status 1
  InstallationDate: Installed on 2016-11-21 (377 days ago)
  InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
  RelatedPackageVersions:
   dpkg 1.18.4ubuntu1.2
   apt  1.2.24
  SecureBoot: 6   0   0   0   0
  SourcePackage: shim-signed
  Title: package shim-signed 1.32~16.04.1+0.9+1474479173.6c180c6-1ubuntu1 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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