[Bug 1758006] Re: package shim-signed 1.33.1+13-0ubuntu2 failed to install/upgrade: installed shim-signed package post-installation script subprocess returned error exit status 1

[Steve Langasek]

The error in your log is:

Setting up shim-signed (1.33.1+13-0ubuntu2) ...
Installing for x86_64-efi platform.
Could not delete variable: Interrupted system call
grub-install: error: efibootmgr failed to register the boot entry: Block device required.
dpkg: error processing package shim-signed (--configure):
 installed shim-signed package post-installation script subprocess returned error exit status 1

This may be a bug in efibootmgr, or in the kernel, or in your firmware.
Please check whether the problem is still reproducible after rebooting
and resuming the upgrade.

** Package changed: shim-signed (Ubuntu) => efibootmgr (Ubuntu)

** Summary changed:

- package shim-signed 1.33.1+13-0ubuntu2 failed to install/upgrade: installed shim-signed package post-installation script subprocess returned error exit status 1
+ Could not delete variable: Interrupted system call (package shim-signed 1.33.1+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/1758006

Title:
  Could not delete variable: Interrupted system call (package shim-
  signed 1.33.1+13-0ubuntu2 failed to install/upgrade: installed shim-
  signed package post-installation script subprocess returned error exit
  status 1)

Status in efibootmgr package in Ubuntu:
  New

Bug description:
  Issue on upgrade to Beta 18.04.

  ProblemType: Package
  DistroRelease: Ubuntu 18.04
  Package: shim-signed 1.33.1+13-0ubuntu2
  ProcVersionSignature: Ubuntu 4.15.0-12.13-generic 4.15.7
  Uname: Linux 4.15.0-12-generic x86_64
  NonfreeKernelModules: wl nvidia_modeset nvidia
  .proc.sys.kernel.moksbstate_disabled: Error: [Errno 2] No such file or directory: '/proc/sys/kernel/moksbstate_disabled'
  ApportVersion: 2.20.8-0ubuntu10
  Architecture: amd64
  Date: Thu Mar 22 11:27:35 2018
  EFITables:
   Mar 22 14:52:24 bilk kernel: efi: EFI v2.31 by INSYDE Corp.
   Mar 22 14:52:24 bilk kernel: efi:  ACPI=0x9cffe000  ACPI 2.0=0x9cffe014  SMBIOS=0x9ceaef98 
   Mar 22 14:52:24 bilk kernel: secureboot: Secure boot could not be determined (mode 0)
   Mar 22 14:54:40 bilk fwupd[4768]: 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 2015-09-02 (932 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  Python3Details: /usr/bin/python3.6, Python 3.6.5rc1, python3-minimal, 3.6.4-1
  PythonDetails: /usr/bin/python2.7, Python 2.7.14+, python-minimal, 2.7.14-4
  RelatedPackageVersions:
   dpkg 1.19.0.5ubuntu1
   apt  1.6~beta1
  SecureBoot: 6   0   0   0   0
  SourcePackage: shim-signed
  Title: package shim-signed 1.33.1+13-0ubuntu2 failed to install/upgrade: installed shim-signed package post-installation script subprocess returned error exit status 1
  UpgradeStatus: Upgraded to bionic on 2018-03-22 (0 days ago)

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