package plymouth-theme-ubuntu-text 0.9.3-1ubuntu7 failed to install/upgrade: geïnstalleerd plymouth-theme-ubuntu-text pakket post-installation script subproces meldde een fout afsluitstatus 2

[David]

david@ubuntu-VBox:~$ lsb_release -rd
Description: Ubuntu 18.04.1 LTS
Release: 18.04

david@ubuntu-VBox:~$ apt-cache policy plymouth
plymouth:
  Geïnstalleerd: 0.9.3-1ubuntu7
  Kandidaat: 0.9.3-1ubuntu7
  Versietabel:
 *** 0.9.3-1ubuntu7 500
        500 http://nl.archive.ubuntu.com/ubuntu bionic/main amd64 Packages
        100 /var/lib/dpkg/status

I was upgrading my packages using apt-get when the error occurred.
I attached the log from apt-get

ProblemType: Package
DistroRelease: Ubuntu 18.04
Package: plymouth-theme-ubuntu-text 0.9.3-1ubuntu7
ProcVersionSignature: Ubuntu 4.15.0-33.36-generic 4.15.18
Uname: Linux 4.15.0-33-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.3
Architecture: amd64
Date: Wed Sep 26 22:35:09 2018
DefaultPlymouth: /usr/share/plymouth/themes/ubuntu-logo/ubuntu-logo.plymouth
ErrorMessage: geïnstalleerd plymouth-theme-ubuntu-text pakket post-installation script subproces meldde een fout afsluitstatus 2
InstallationDate: Installed on 2018-08-27 (30 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
Lsusb:
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 002 Device 002: ID 80ee:0021 VirtualBox USB Tablet
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: innotek GmbH VirtualBox
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-33-generic root=UUID=ac96a912-6cd7-4d78-98ec-b6c0303de702 ro quiet splash
ProcFB: 0 vboxdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-33-generic root=UUID=ac96a912-6cd7-4d78-98ec-b6c0303de702 ro quiet splash
Python3Details: /usr/local/bin/python3.7, Python 3.7.0, unpackaged
PythonDetails: /usr/local/bin/python2.7, Python 2.7.15, unpackaged
RelatedPackageVersions:
 dpkg 1.19.0.5ubuntu2
 apt 1.6.3ubuntu0.1
SourcePackage: plymouth
TextPlymouth: /usr/share/plymouth/themes/ubuntu-text/ubuntu-text.plymouth
Title: package plymouth-theme-ubuntu-text 0.9.3-1ubuntu7 failed to install/upgrade: geïnstalleerd plymouth-theme-ubuntu-text pakket post-installation script subproces meldde een fout afsluitstatus 2
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/01/2006
dmi.bios.vendor: innotek GmbH
dmi.bios.version: VirtualBox
dmi.board.name: VirtualBox
dmi.board.vendor: Oracle Corporation
dmi.board.version: 1.2
dmi.chassis.type: 1
dmi.chassis.vendor: Oracle Corporation
dmi.modalias: dmi:bvninnotekGmbH:bvrVirtualBox:bd12/01/2006:svninnotekGmbH:pnVirtualBox:pvr1.2:rvnOracleCorporation:rnVirtualBox:rvr1.2:cvnOracleCorporation:ct1:cvr:
dmi.product.family: Virtual Machine
dmi.product.name: VirtualBox
dmi.product.version: 1.2
dmi.sys.vendor: innotek GmbH

[Steve Langasek (vorlon)]

The error in your log is:

update-alternatives: fout: kan niets toevoegen aan '/usr/local/var/log/alternatives.log': Bestand of map bestaat niet

Why is update-alternatives trying to use this path? The correct path to use is /var/log/alternatives.log. Do you have a local installation of dpkg under /usr/local?

[David (mrmusic00)]

I have dpkg files in /usr/local/bin/
I think there is an installation of dpkg under /usr/local/ but I'm not sure.

I ran some commands on dpkg, see below:

david@ubuntu-VBox:~$ dpkg --version
Programma voor Debian pakketbeheer 'dpkg' versie 1.19.0.5 (amd64).
Dit is vrije programmatuur; zie de GNU General Public Licentie versie 2
of later voor kopieervoorwaarden. Er is GEEN garantie.

david@ubuntu-VBox:~$ apt-cache policy dpkg
dpkg:
  Geïnstalleerd: 1.19.0.5ubuntu2
  Kandidaat: 1.19.0.5ubuntu2
  Versietabel:
 *** 1.19.0.5ubuntu2 500
        500 http://nl.archive.ubuntu.com/ubuntu bionic/main amd64 Packages
        100 /var/lib/dpkg/status

[Steve Langasek (vorlon)]

> I have dpkg files in /usr/local/bin/
> I think there is an installation of dpkg under /usr/local/ but I'm not sure.

Ok, so this is unsupported.

But I think it's a bug in the *system* dpkg that the path of maintainer scripts is tainted by /usr/local.