[Bug 1939940] Re: package openssh-server 1:8.2p1-4ubuntu0.3 failed to install/upgrade: installed openssh-server package post-installation script subprocess returned error exit status 1

[Paride Legovini]

Hello and thanks for this bug report. By reading the bug description it
looks like there is an issue in your sshd_config:

SSHDConfig: Error: command ['/usr/sbin/sshd', '-T'] failed with exit
code 255: /etc/ssh/sshd_config line 15: Badly formatted port number.

If sshd was working before it may be that the service wasn't restarted
after the breaking config change. The upgrade triggered a restart and
thus the failure.

I'm setting this bug report as Incomplete for now. Should you think that
this is actually a bug in Ubuntu and not a local configuration issue
please comment back providing your reasoning and a  sshd_config line
that reproduces the issue in a clean Ubuntu system.

On the other hand should you find out this is actually a local
configuration issue please set the status of this bug report to Invalid.
Thanks!

** Changed in: openssh (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1939940

Title:
  package openssh-server 1:8.2p1-4ubuntu0.3 failed to install/upgrade:
  installed openssh-server package post-installation script subprocess
  returned error exit status 1

Status in openssh package in Ubuntu:
  Incomplete

Bug description:
  this happened during an update

  ProblemType: Package
  DistroRelease: Ubuntu 20.04
  Package: openssh-server 1:8.2p1-4ubuntu0.3
  ProcVersionSignature: Ubuntu 5.11.0-25.27~20.04.1-generic 5.11.22
  Uname: Linux 5.11.0-25-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.18
  Architecture: amd64
  CasperMD5CheckResult: skip
  Date: Sat Aug 14 08:13:05 2021
  ErrorMessage: installed openssh-server package post-installation script subprocess returned error exit status 1
  InstallationDate: Installed on 2020-11-11 (275 days ago)
  InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
  Python3Details: /usr/bin/python3.8, Python 3.8.10, python3-minimal, 3.8.2-0ubuntu2
  PythonDetails: N/A
  RelatedPackageVersions:
   dpkg 1.19.7ubuntu3
   apt  2.0.6
  SSHDConfig: Error: command ['/usr/sbin/sshd', '-T'] failed with exit code 255: /etc/ssh/sshd_config line 15: Badly formatted port number.
  SourcePackage: openssh
  Title: package openssh-server 1:8.2p1-4ubuntu0.3 failed to install/upgrade: installed openssh-server package post-installation script subprocess returned error exit status 1
  UpgradeStatus: No upgrade log present (probably fresh install)

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