[Bug 1512344] Re: Package nginx-* failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Thomas Ward]

** Summary changed:

- [Master Bug] Package nginx-* failed to install/upgrade: subprocess installed post-installation script returned error exit status 1  (due to Port 80 being in use)
+ Package nginx-* failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

** Summary changed:

- Package nginx-* failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
+ [Master Bug] Package nginx-* failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 (due to "Address in Use" issue)

** Description changed:

  This is a master bug for all package-type nginx bugs with
  install/upgrade failures as a result of port 80 being already used by
  another process.  It was created to be a 'master' for all the bugs which
  are caused by some other service being bound to *:80 (both IPv4 and
  IPv6) when any of the nginx flavors or server-binary packages are
  installed, and all subsequent bugs which match this type of issue will
  be marked as a duplicate of this one.
+ 
+ A purposely-generated 'package' bug of this type was created, and is
+ located at https://bugs.launchpad.net/ubuntu/+source/nginx/+bug/1512484.
+ Bugs of a nature matching that one (an "Address In Use" error) should
+ point to here.
  
  ------
  
  The issue observed is not in and of itself a bug - this is an issue in
  which the system you are installing NGINX on already has something else
  listening on port 80.
  
  To fix this issue, you need to first find what is listening on Port 80,
  and turn it off.  At that time, either install NGINX or use 'apt-get
  install -f' to try and finish configuration.
  
  An example of the error logs of this can be seen in Vivid and later with
  `systemctl -l status nginx.service` which will return something like the
  attached "systemctl_output.txt" file that is attached to this bug.

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https://bugs.launchpad.net/bugs/1512344

Title:
  [Master Bug] Package nginx-* failed to install/upgrade: subprocess
  installed post-installation script returned error exit status 1 (due
  to "Address in Use" issue)

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