package pcp 6.2.0-1.1build4 failed to install/upgrade: installed pcp package post-installation script subprocess returned error exit status 1

[chilicheech]

Errors were encountered while processing:
 pcp
 cockpit-pcp
needrestart is being skipped since dpkg has failed
packages have been installed but needrestart is suspended
packages have been installed but needrestart is suspended
Exception during pm.DoInstall(): E:Sub-process /usr/bin/dpkg returned an error code (1)

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ProblemType: Package
DistroRelease: Ubuntu 24.04
Package: pcp 6.2.0-1.1build4
ProcVersionSignature: Ubuntu 6.5.0-35.35-generic 6.5.13
Uname: Linux 6.5.0-35-generic x86_64
ApportVersion: 2.28.1-0ubuntu3
Architecture: amd64
CasperMD5CheckResult: pass
CloudArchitecture: x86_64
CloudID: none
CloudName: none
CloudPlatform: none
CloudSubPlatform: config
Date: Fri May 31 20:48:59 2024
ErrorMessage: installed pcp package post-installation script subprocess returned error exit status 1
InstallationDate: Installed on 2021-12-09 (904 days ago)
InstallationMedia: Ubuntu-Server 21.10 "Impish Indri" - Release amd64 (20211013)
Python3Details: /usr/bin/python3.12, Python 3.12.3, python3-minimal, 3.12.3-0ubuntu1
PythonDetails: N/A
RebootRequiredPkgs: Error: path contained symlinks.
RelatedPackageVersions:
 dpkg 1.22.6ubuntu6
 apt 2.7.14build2
SourcePackage: pcp
Title: package pcp 6.2.0-1.1build4 failed to install/upgrade: installed pcp package post-installation script subprocess returned error exit status 1
UpgradeStatus: Upgraded to noble on 2024-06-01 (0 days ago)

[Launchpad Janitor (janitor)]

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

[Jason Duerstock (evilmoo)]

I'm not sure how or why, but during the upgrade, /dev/null got chmod'ed to 644. Setting it back to 666 let it work correctly.