package oidentd 2.5.0-1 failed to install/upgrade: installed oidentd package post-installation script subprocess returned error exit status 1

[Bror Appelsin]

Fails to start after rebooting upgraded system. Not really a concern of mine, just as FYI.

root@count:~# systemctl status oidentd.service
× oidentd.service - RFC 1413 compliant ident daemon
     Loaded: loaded (/lib/systemd/system/oidentd.service; enabled; vendor preset: enabled)
     Active: failed (Result: exit-code) since Sun 2023-01-15 17:32:37 EET; 6s ago
    Process: 1490 ExecStart=/bin/sh -c exec /usr/sbin/oidentd -S ${OIDENT_OPTIONS} -u "${OIDENT_USER}" ->
        CPU: 6ms

Jan 15 17:32:37 count systemd[1]: oidentd.service: Scheduled restart job, restart counter is at 5.
Jan 15 17:32:37 count systemd[1]: Stopped RFC 1413 compliant ident daemon.
Jan 15 17:32:37 count systemd[1]: oidentd.service: Start request repeated too quickly.
Jan 15 17:32:37 count systemd[1]: oidentd.service: Failed with result 'exit-code'.
Jan 15 17:32:37 count systemd[1]: Failed to start RFC 1413 compliant ident daemon.
root@count:~# journalctl -xeu oidentd.service
░░
░░ A stop job for unit oidentd.service has finished.
░░
░░ The job identifier is 1022 and the job result is done.
Jan 15 17:32:37 count systemd[1]: Starting RFC 1413 compliant ident daemon...
░░ Subject: A start job for unit oidentd.service has begun execution
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ A start job for unit oidentd.service has begun execution.
░░
░░ The job identifier is 1022.
Jan 15 17:32:37 count sh[1490]: Fatal: Unable to set up listening socket
Jan 15 17:32:37 count sh[1490]: (try running oidentd as root)
Jan 15 17:32:37 count systemd[1]: oidentd.service: Control process exited, code=exited, status=1/FAILURE
░░ Subject: Unit process exited
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ An ExecStart= process belonging to unit oidentd.service has exited.
░░
░░ The process' exit code is 'exited' and its exit status is 1.
Jan 15 17:32:37 count systemd[1]: oidentd.service: Failed with result 'exit-code'.
░░ Subject: Unit failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ The unit oidentd.service has entered the 'failed' state with result 'exit-code'.
Jan 15 17:32:37 count systemd[1]: Failed to start RFC 1413 compliant ident daemon.
░░ Subject: A start job for unit oidentd.service has failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ A start job for unit oidentd.service has finished with a failure.
░░
░░ The job identifier is 1022 and the job result is failed.
Jan 15 17:32:37 count systemd[1]: oidentd.service: Scheduled restart job, restart counter is at 5.
░░ Subject: Automatic restarting of a unit has been scheduled
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ Automatic restarting of the unit oidentd.service has been scheduled, as the result for
░░ the configured Restart= setting for the unit.
Jan 15 17:32:37 count systemd[1]: Stopped RFC 1413 compliant ident daemon.
░░ Subject: A stop job for unit oidentd.service has finished
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ A stop job for unit oidentd.service has finished.
░░
░░ The job identifier is 1113 and the job result is done.
Jan 15 17:32:37 count systemd[1]: oidentd.service: Start request repeated too quickly.
Jan 15 17:32:37 count systemd[1]: oidentd.service: Failed with result 'exit-code'.
░░ Subject: Unit failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ The unit oidentd.service has entered the 'failed' state with result 'exit-code'.
Jan 15 17:32:37 count systemd[1]: Failed to start RFC 1413 compliant ident daemon.
░░ Subject: A start job for unit oidentd.service has failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ A start job for unit oidentd.service has finished with a failure.
░░
░░ The job identifier is 1113 and the job result is failed.
lines 686-751/751 (END)

ProblemType: Package
DistroRelease: Ubuntu 22.04
Package: oidentd 2.5.0-1
ProcVersionSignature: Ubuntu 5.4.0-132.148-generic 5.4.212
Uname: Linux 5.4.0-132-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.3
Architecture: amd64
CasperMD5CheckResult: pass
Date: Sun Jan 15 17:14:46 2023
ErrorMessage: installed oidentd package post-installation script subprocess returned error exit status 1
InstallationDate: Installed on 2021-01-20 (724 days ago)
InstallationMedia: Ubuntu-Server 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
Python3Details: /usr/bin/python3.10, Python 3.10.6, python3-minimal, 3.10.6-1~22.04
PythonDetails: N/A
RebootRequiredPkgs: Error: path contained symlinks.
RelatedPackageVersions:
 dpkg 1.21.1ubuntu2.1
 apt 2.4.8
SourcePackage: oidentd
Title: package oidentd 2.5.0-1 failed to install/upgrade: installed oidentd package post-installation script subprocess returned error exit status 1
UpgradeStatus: Upgraded to jammy on 2023-01-15 (0 days ago)
mtime.conffile..etc.default.oidentd: 2021-01-20T22:18:04.852236
mtime.conffile..etc.oidentd.conf: 2021-01-20T22:03:13.156379
mtime.conffile..etc.oidentd_masq.conf: 2021-01-20T22:17:31.081837