[Bug 1766757] Re: package shim-signed 1.34.9+13-0ubuntu2 failed to install/upgrade: installed shim-signed package post-installation script subprocess returned error exit status 1

[Steve Langasek]

Your log shows this is an upgrade of shim-signed, from version
1.33.1+13-0ubuntu2 to 1.34.9+13-0ubuntu2, so you have previously had
this package successfully installed; but the error in your logs is:

Installing for x86_64-efi platform.
grub-install: error: cannot find EFI directory.
ESC[1mdpkg:ESC[0m error processing package shim-signed (--configure):
 installed shim-signed package post-installation script subprocess returned error exit status 1

This shows that you have no EFI System Partition mounted at /boot/efi.
Why is this?

The BootEFIContents attachment also shows that you have a fully
populated /boot/efi/EFI/ubuntu directory; but if this is not actually an
EFI System Partition, it will not be visible to the firmware.

You do have a /dev/sda1 partition mounted at /boot.  What filesystem is
on this partition?

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

** Summary changed:

- package shim-signed 1.34.9+13-0ubuntu2 failed to install/upgrade: installed shim-signed package post-installation script subprocess returned error exit status 1
+ (MacBook, UEFI, /boot/efi not mounted) package shim-signed 1.34.9+13-0ubuntu2 failed to install/upgrade: installed shim-signed package post-installation script subprocess returned error exit status 1

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https://bugs.launchpad.net/bugs/1766757

Title:
  (MacBook, UEFI, /boot/efi not mounted) package shim-signed
  1.34.9+13-0ubuntu2 failed to install/upgrade: installed shim-signed
  package post-installation script subprocess returned error exit status
  1

Status in shim-signed package in Ubuntu:
  Incomplete

Bug description:
  On MacBook Pro the installation of shim-signed fails

  ProblemType: Package
  DistroRelease: Ubuntu 18.04
  Package: shim-signed 1.34.9+13-0ubuntu2
  ProcVersionSignature: Ubuntu 4.15.0-15.16-generic 4.15.15
  Uname: Linux 4.15.0-15-generic x86_64
  NonfreeKernelModules: wl
  .proc.sys.kernel.moksbstate_disabled: Error: [Errno 2] No such file or directory: '/proc/sys/kernel/moksbstate_disabled'
  ApportVersion: 2.20.9-0ubuntu7
  Architecture: amd64
  Date: Tue Apr 24 18:42:18 2018
  EFITables:
   Apr 22 21:43:03 pipous-ubuntu kernel: efi: EFI v1.10 by Apple
   Apr 22 21:43:03 pipous-ubuntu kernel: efi:  ACPI=0x8ad8e000  ACPI 2.0=0x8ad8e014  SMBIOS=0x8ad35000 
   Apr 22 21:43:03 pipous-ubuntu kernel: secureboot: Secure boot disabled
   Apr 22 22:38:14 pipous-ubuntu fwupd[3151]: disabling plugin because: failed to startup uefi: UEFI firmware updating not supported
  ErrorMessage: installed shim-signed package post-installation script subprocess returned error exit status 1
  InstallationDate: Installed on 2018-03-26 (30 days ago)
  InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180325)
  Python3Details: /usr/bin/python3.6, Python 3.6.5, python3-minimal, 3.6.5-3
  PythonDetails: /usr/bin/python2.7, Python 2.7.15rc1, python-minimal, 2.7.15~rc1-1
  RelatedPackageVersions:
   dpkg 1.19.0.5ubuntu2
   apt  1.6.1
  SourcePackage: shim-signed
  Title: package shim-signed 1.34.9+13-0ubuntu2 failed to install/upgrade: installed shim-signed package post-installation script subprocess returned error exit status 1
  UpgradeStatus: No upgrade log present (probably fresh install)

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