package nginx-full 1.10.0-0ubuntu0.16.04.4 failed to install/upgrade: le sous-processus script post-installation installé a retourné une erreur de sortie d'état 1

[André Linden]

This failure occurred while I was trying to install the 'Plone 5' Content Management System (CMS) with Nginx as a server on Ubuntu 16.4 (the same happened with nginx-core). However, I had no problem installing 'Plone 5' and Nginx on Ubuntu 14.04.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: nginx-full 1.10.0-0ubuntu0.16.04.4
ProcVersionSignature: Ubuntu 4.4.0-59.80-generic 4.4.35
Uname: Linux 4.4.0-59-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.5
AptOrdering:
 nginx-core: Remove
 nginx-full: Install
 nginx-full: Configure
 nginx: Configure
 NULL: ConfigurePending
Architecture: amd64
Date: Mon Jan 23 22:09:05 2017
ErrorMessage: le sous-processus script post-installation installé a retourné une erreur de sortie d'état 1
InstallationDate: Installed on 2016-12-29 (25 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.18
SourcePackage: nginx
Title: package nginx-full 1.10.0-0ubuntu0.16.04.4 failed to install/upgrade: le sous-processus script post-installation installé a retourné une erreur de sortie d'état 1
UpgradeStatus: No upgrade log present (probably fresh install)

[Joshua Powers (powersj)]

From log:

jan 24 12:38:45 aln-sys nginx[988]: nginx: [emerg] open() "/etc/nginx/nginx.conf" failed (2: No such file or directory)
jan 24 12:38:45 aln-sys nginx[988]: nginx: configuration file /etc/nginx/nginx.conf test failed
jan 24 12:38:45 aln-sys systemd[1]: nginx.service: Control process exited, code=exited status=1
jan 24 12:38:45 aln-sys systemd[1]: Failed to start A high performance web server and a reverse proxy server.

[Joshua Powers (powersj)]

Thank you for taking the time to file a bug report.

From the above log message it appears that the issue is the conf file is
not present. As a result the nginx server will not start.

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

However, if you believe that this is really a bug in Ubuntu, then we would
be grateful if you would provide a more complete description of the problem
with steps to reproduce, 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".

For local configuration issues, you can find assistance here:
http://www.ubuntu.com/support/community

[Thomas Ward (teward)]

Joshua: You and I might want to have a talk about bug triage/handling for nginx in certain cases.

Andre: This is not a bug in the existing packaging or even Ubuntu itself, but usually a case of a package doing something evil and removin config, but it has a workaround and a way to fix this - run 'sudo apt-get remove --purge nginx-common && sudo apt-get install nginx-common'. This will install a fresh default configuration. Install any other dependencies for Plone again (including whichever nginx version got installed) and you should not have this issue again.