[Bug 1904811] Re: package openssh-server 1:8.2p1-4ubuntu0.1 failed to install/upgrade: installed openssh-server package post-installation script subprocess returned error exit status 1

[Christian Ehrhardt ]

Thank you for taking the time to report this bug and helping to make
Ubuntu better.

On upgrading a service this service has to be restarted to pick up the fixes.
Rather rarely a real issue occurs that the newer version does e.g. fail with the formerly working configuration.
But most of the time what happens is, that a service was installed, but stays unconfigured or experimented with but left in a broken state.

Now on any update of the related packages that service has to be restarted, but since its config is incomplete/faulty it fails to restart.
Therefore the update of that package has to consider itself incomplete.

Depending on your particular case there are two solutions:
- either remove the offending package if you don't want to continue using it.
- Or if you do want to keep it please fix the configuration so that re-starting the service will work.

Since it seems likely to me that this is a local configuration problem,
rather than a bug in Ubuntu, I'm marking this bug as Incomplete.

If indeed this is a local configuration problem, you can find pointers
to get help for this sort of problem here:
http://www.ubuntu.com/support/community

Or if you believe that this is really a bug, then you may find it
helpful to read "How to report bugs effectively"
http://www.chiark.greenend.org.uk/~sgtatham/bugs.html. We'd be grateful
if you would then provide a more complete description of the problem,
explain why you believe this is a bug in Ubuntu rather than a problem
specific to your system, and then change the bug status back to New.

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

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https://bugs.launchpad.net/bugs/1904811

Title:
  package openssh-server 1:8.2p1-4ubuntu0.1 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:
  ?

  ProblemType: Package
  DistroRelease: Ubuntu 20.04
  Package: openssh-server 1:8.2p1-4ubuntu0.1
  ProcVersionSignature: Ubuntu 5.4.0-54.60-generic 5.4.65
  Uname: Linux 5.4.0-54-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.11-0ubuntu27.12
  AptOrdering:
   openssh-sftp-server:amd64: Install
   openssh-server:amd64: Install
   ssh-import-id:amd64: Install
   NULL: ConfigurePending
  Architecture: amd64
  CasperMD5CheckResult: skip
  Date: Wed Nov 18 19:09:53 2020
  ErrorMessage: installed openssh-server package post-installation script subprocess returned error exit status 1
  InstallationDate: Installed on 2020-11-11 (7 days ago)
  InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
  Python3Details: /usr/bin/python3.8, Python 3.8.5, python3-minimal, 3.8.2-0ubuntu2
  PythonDetails: N/A
  RelatedPackageVersions:
   dpkg 1.19.7ubuntu3
   apt  2.0.2ubuntu0.1
  SSHDConfig: Error: command ['/usr/sbin/sshd', '-T'] failed with exit code 255: /etc/ssh/sshd_config line 35: missing argument.
  SourcePackage: openssh
  Title: package openssh-server 1:8.2p1-4ubuntu0.1 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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