[Bug 1766729] 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]

The error in your log is:

Setting up shim-signed (1.34.9+13-0ubuntu2) ...
Installing for x86_64-efi platform.
Could not delete variable: Invalid argument
grub-install: error: efibootmgr failed to register the boot entry: Block device required.
ESC[1mdpkg:ESC[0m error processing package shim-signed (--configure):
 installed shim-signed package post-installation script subprocess returned error exit status 1

Your attached fstab information looks reasonable.

/dev/sda1                     486456       4880    481576   2% /boot/efi

and your bug report shows that shim-signed had clearly been successfully
installed previously, and that your system is booted in EFI mode.

However, something between grub and efibootmgr has failed when trying to
access / update your firmware variables.

Reassigning to grub.

** Package changed: shim-signed (Ubuntu) => grub2 (Ubuntu)

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https://bugs.launchpad.net/bugs/1766729

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

Status in grub2 package in Ubuntu:
  New

Bug description:
  Tried sudo dpkg --configure -a

  Tried sudo rm /var/cache/debconf/*.dat, mentioned as a fix for a
  similar problem elsewhere

  ProblemType: Package
  DistroRelease: Ubuntu 18.04
  Package: shim-signed 1.34.9+13-0ubuntu2
  ProcVersionSignature: Ubuntu 4.15.0-19.20-generic 4.15.17
  Uname: Linux 4.15.0-19-generic x86_64
  .proc.sys.kernel.moksbstate_disabled: Error: [Errno 2] No such file or directory: '/proc/sys/kernel/moksbstate_disabled'
  ApportVersion: 2.20.9-0ubuntu6
  Architecture: amd64
  Date: Tue Apr 24 22:28:58 2018
  EFIBootMgr:
   BootCurrent: 0000
   Timeout: 2 seconds
   BootOrder: 0000
   Boot0000* ubuntu	HD(1,GPT,8dbe3d08-b903-4769-8020-5d5e2265b92e,0x800,0xee000)/File(\EFI\ubuntu\shimx64.efi)
   Boot0002* debian	HD(1,GPT,8dbe3d08-b903-4769-8020-5d5e2265b92e,0x800,0xee000)/File(\EFI\debian\grubx64.efi)
  EFITables:
   Apr 24 22:30:05 mkbook kernel: efi: EFI v2.40 by American Megatrends
   Apr 24 22:30:05 mkbook kernel: efi:  ACPI=0x6f5f0000  ACPI 2.0=0x6f5f0000  SMBIOS=0x6fd68000  SMBIOS 3.0=0x6fd67000  ESRT=0x6fcd7018  MEMATTR=0x6cd56298 
   Apr 24 22:30:05 mkbook kernel: secureboot: Secure boot could not be determined (mode 0)
   Apr 24 22:30:05 mkbook kernel: esrt: Reserving ESRT space from 0x000000006fcd7018 to 0x000000006fcd7050.
  ErrorMessage: installed shim-signed package post-installation script subprocess returned error exit status 1
  InstallationDate: Installed on 2018-04-23 (1 days ago)
  InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Beta amd64 (20180404)
  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
  SecureBoot: 6   0   0   0   0
  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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