[Bug 1814586] Re: package openssh-server 1:7.2p2-4ubuntu2.6 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Norbert]

Finally I have ran `sudo chmod g-w /` to be completely sure and rebooted again.
As the result I can connect to this machine from my LAN.

Just curious - why did I have 1004:1004 rights on /?

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

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Title:
  package openssh-server 1:7.2p2-4ubuntu2.6 failed to install/upgrade:
  subprocess installed post-installation script returned error exit
  status 1

Status in openssh package in Ubuntu:
  Invalid

Bug description:
  I have installed all updates to my system recently.
  Then I tried to connect to this system from my LAN and was unable to connect.
  So I tried to restart ssh service:

  sudo service ssh restart
  Job for ssh.service failed because the control process exited with error code. See "systemctl status ssh.service" and "journalctl -xe" for details.

  фев 04 23:22:00 norbert-vaio systemd[1]: Failed to start OpenBSD Secure Shell server.
  фев 04 23:22:00 norbert-vaio systemd[1]: ssh.service: Unit entered failed state.
  фев 04 23:22:00 norbert-vaio systemd[1]: ssh.service: Failed with result 'exit-code'.
  фев 04 23:22:00 norbert-vaio systemd[1]: ssh.service: Service hold-off time over, scheduling restart.
  фев 04 23:22:00 norbert-vaio systemd[1]: Stopped OpenBSD Secure Shell server.
  фев 04 23:22:00 norbert-vaio systemd[1]: ssh.service: Start request repeated too quickly.
  фев 04 23:22:00 norbert-vaio systemd[1]: Failed to start OpenBSD Secure Shell server.
  фев 04 23:22:00 norbert-vaio systemd[1]: ssh.service: Unit entered failed state.
  фев 04 23:22:00 norbert-vaio systemd[1]: ssh.service: Failed with result 'start-limit-hit'.

  Then I tried to reinstall it

  $ sudo apt-get install --reinstall openssh-server 
  Reading package lists... Done
  Building dependency tree       
  Reading state information... Done
  0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 0 not upgraded.
  Need to get 0 B/335 kB of archives.
  After this operation, 0 B of additional disk space will be used.
  Preconfiguring packages ...
  (Reading database ... 878149 files and directories currently installed.)
  Preparing to unpack .../openssh-server_1%3a7.2p2-4ubuntu2.6_amd64.deb ...
  Unpacking openssh-server (1:7.2p2-4ubuntu2.6) over (1:7.2p2-4ubuntu2.6) ...
  Processing triggers for ureadahead (0.100.0-19) ...
  Processing triggers for systemd (229-4ubuntu21.15) ...
  Processing triggers for ufw (0.35-0ubuntu2) ...
  WARN: uid is 0 but '/' is owned by 1004
  WARN: / is group writable!
  Processing triggers for man-db (2.7.5-1) ...
  Setting up openssh-server (1:7.2p2-4ubuntu2.6) ...
  Unsafe symlinks encountered in /var/run/sshd, refusing.
  initctl: Unable to connect to Upstart: Failed to connect to socket /com/ubuntu/upstart: Connection refused
  insserv: warning: script 'screen-cleanup' missing LSB tags and overrides
  insserv: Default-Start undefined, assuming empty start runlevel(s) for script `screen-cleanup'
  insserv: Default-Stop  undefined, assuming empty stop  runlevel(s) for script `screen-cleanup'
  initctl: Unable to connect to Upstart: Failed to connect to socket /com/ubuntu/upstart: Connection refused
  insserv: warning: script 'binfmt-support' missing LSB tags and overrides
  insserv: Default-Start undefined, assuming empty start runlevel(s) for script `binfmt-support'
  insserv: Default-Stop  undefined, assuming empty stop  runlevel(s) for script `binfmt-support'
  Job for ssh.service failed because the control process exited with error code. See "systemctl status ssh.service" and "journalctl -xe" for details.
  invoke-rc.d: initscript ssh, action "restart" failed.
  ● ssh.service - OpenBSD Secure Shell server
     Loaded: loaded (/lib/systemd/system/ssh.service; enabled; vendor preset: enabled)
     Active: activating (auto-restart) (Result: exit-code) since Пн 2019-02-04 23:28:33 MSK; 9ms ago
    Process: 23843 ExecStartPre=/usr/sbin/sshd -t (code=exited, status=255)
   Main PID: 23206 (code=exited, status=0/SUCCESS)

  фев 04 23:28:33 norbert-vaio systemd[1]: Failed to start OpenBSD Secure Shell server.
  фев 04 23:28:33 norbert-vaio systemd[1]: ssh.service: Unit entered failed state.
  фев 04 23:28:33 norbert-vaio systemd[1]: ssh.service: Failed with result 'exit-code'.
  dpkg: error processing package openssh-server (--configure):
   subprocess installed post-installation script returned error exit status 1
  Errors were encountered while processing:
   openssh-server
  E: Sub-process /usr/bin/dpkg returned an error code (1)

  and got this bug.

  ProblemType: Package
  DistroRelease: Ubuntu 16.04
  Package: openssh-server 1:7.2p2-4ubuntu2.6
  ProcVersionSignature: Ubuntu 4.4.0-138.164-generic 4.4.155
  Uname: Linux 4.4.0-138-generic x86_64
  NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
  ApportVersion: 2.20.1-0ubuntu2.18
  AptOrdering:
   openssh-server: Install
   openssh-server: Configure
   NULL: ConfigurePending
  Architecture: amd64
  Date: Mon Feb  4 23:26:36 2019
  ErrorMessage: subprocess installed post-installation script returned error exit status 1
  InstallationDate: Installed on 2010-12-05 (2983 days ago)
  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
  RelatedPackageVersions:
   dpkg 1.18.4ubuntu1.5
   apt  1.2.29ubuntu0.1
  SourcePackage: openssh
  Title: package openssh-server 1:7.2p2-4ubuntu2.6 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
  UpgradeStatus: Upgraded to xenial on 2017-06-24 (589 days ago)
  modified.conffile..etc.ufw.applications.d.openssh-server: [deleted]

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