/var/lib/shim-signed/dkms-list.new missing (package shim-signed 1.34.1+13-0ubuntu2 failed to install/upgrade: Unterprozess installed shim-signed package post-installation script gab den Fehler-Ausgangsstatus 1 zurück)

[Pavel Rojtberg]

tried to access a non existing file

ProblemType: Package
DistroRelease: Ubuntu 18.04
Package: shim-signed 1.34.1+13-0ubuntu2
ProcVersionSignature: Ubuntu 4.15.0-17.18-generic 4.15.17
Uname: Linux 4.15.0-17-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
.proc.sys.kernel.moksbstate_disabled: Error: [Errno 2] Datei oder Verzeichnis nicht gefunden: '/proc/sys/kernel/moksbstate_disabled'
ApportVersion: 2.20.9-0ubuntu6
Architecture: amd64
Date: Sat Apr 21 13:42:22 2018
EFIBootMgr:
 BootCurrent: 0001
 Timeout: 1 seconds
 BootOrder: 0001,0000
 Boot0000* Windows Boot Manager HD(1,GPT,ddb643d4-4086-476b-81f5-c4ef3dc93fe3,0x800,0x32000)/File(\EFI\MICROSOFT\BOOT\BOOTMGFW.EFI)WINDOWS.........x...B.C.D.O.B.J.E.C.T.=.{.9.d.e.a.8.6.2.c.-.5.c.d.d.-.4.e.7.0.-.a.c.c.1.-.f.3.2.b.3.4.4.d.4.7.9.5.}....................
 Boot0001* ubuntu HD(1,GPT,ddb643d4-4086-476b-81f5-c4ef3dc93fe3,0x800,0x32000)/File(\EFI\ubuntu\shimx64.efi)
EFITables:
 Apr 21 12:12:55 deepwhite kernel: efi: EFI v2.31 by American Megatrends
 Apr 21 12:12:55 deepwhite kernel: efi: ACPI 2.0=0xddf93000 ACPI=0xddf93000 SMBIOS=0xdef79498
 Apr 21 12:12:55 deepwhite kernel: secureboot: Secure boot disabled
 Apr 21 13:20:43 deepwhite fwupd[5248]: disabling plugin because: failed to startup uefi: UEFI firmware updating not supported
ErrorMessage: Unterprozess installed shim-signed package post-installation script gab den Fehler-Ausgangsstatus 1 zurück
InstallationDate: Installed on 2014-11-15 (1253 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
MokSBStateRT: 6 0 0 0 1
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: 22 0 0 0 1
SourcePackage: shim-signed
Title: package shim-signed 1.34.1+13-0ubuntu2 failed to install/upgrade: Unterprozess installed shim-signed package post-installation script gab den Fehler-Ausgangsstatus 1 zurück
UpgradeStatus: Upgraded to bionic on 2018-01-31 (80 days ago)

[Steve Langasek (vorlon)]

The error in your log is:

mv: Aufruf von stat für '/var/lib/shim-signed/dkms-list.new' nicht möglich: Datei oder Verzeichnis nicht gefunden

The update-secureboot-policy script unconditionally calls a function "update_dkms_list" when invoked, which creates this file. It then calls 'mv /var/lib/shim-signed/dkms-list.new /var/lib/shim-signed/dkms-list' only at the end of processing, exactly once.

Is there something about your system that would explain why a file created at the beginning of this command's run is missing by the end of the command's run? Other users are not seeing this problem.