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

[Lawrence Wickline]

crash on upgrade

ProblemType: Package
DistroRelease: Ubuntu 17.10
Package: shim-signed 1.32+0.9+1474479173.6c180c6-1ubuntu1
ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4
Uname: Linux 4.13.0-16-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
.proc.sys.kernel.moksbstate_disabled: Error: [Errno 2] No such file or directory: '/proc/sys/kernel/moksbstate_disabled'
ApportVersion: 2.20.7-0ubuntu3
Architecture: amd64
Date: Mon Oct 23 21:20:43 2017
EFITables:
 Oct 23 21:24:31 Xav-Laptop kernel: efi: EFI v2.40 by American Megatrends
 Oct 23 21:24:31 Xav-Laptop kernel: efi: ESRT=0x3f9e7e98 ACPI=0x3f174000 ACPI 2.0=0x3f174000 SMBIOS=0x3f9e6000 SMBIOS 3.0=0x3f9e5000
 Oct 23 21:24:31 Xav-Laptop kernel: esrt: Reserving ESRT space from 0x000000003f9e7e98 to 0x000000003f9e7ed0.
 Oct 23 21:24:31 Xav-Laptop kernel: Secure boot could not be determined
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2017-04-15 (191 days ago)
InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
Python3Details: /usr/bin/python3.6, Python 3.6.3, python3-minimal, 3.6.3-0ubuntu2
PythonDetails: /usr/bin/python2.7, Python 2.7.14, python-minimal, 2.7.14-2ubuntu1
RelatedPackageVersions:
 dpkg 1.18.24ubuntu1
 apt 1.5
SecureBoot: 6 0 0 0 0
SourcePackage: shim-signed
Title: package shim-signed 1.32+0.9+1474479173.6c180c6-1ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to artful on 2017-10-24 (0 days ago)

[Steve Langasek (vorlon)]

The error in your log is:

Installing for x86_64-efi platform.
grub-install: error: cannot open `/boot/efi/EFI/BOOT/BOOTX64.efi': Is a directory.
dpkg: error processing package shim-signed (--configure):
 subprocess installed post-installation script returned error exit status 1

This indicates that your EFI System Partition has been corrupted. You probably need to remove /boot/efi/EFI/BOOT/BOOTX64.efi to let the upgrade complete successfully.

Reassigning this bug to grub; it's possible there's something we can do here to make the upgrade more robust.

[Launchpad Janitor (janitor)]

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