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:~$ sudo apt-get remove nginx* && sudo apt-get install nginx-full*

Reading package lists... Done
Building dependency tree       
Reading state information... Done

After this operation, 5,579 kB of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1 http://in.archive.ubuntu.com/ubuntu xenial-updates/universe amd64 nginx-full-dbg amd64 1.10.0-0ubuntu0.16.04.1 [3,789 kB]
Fetched 3,789 kB in 33s (112 kB/s)                                             
Selecting previously unselected package nginx-common.
(Reading database ... 189767 files and directories currently installed.)
Preparing to unpack .../nginx-common_1.10.0-0ubuntu0.16.04.1_all.deb ...
Unpacking nginx-common (1.10.0-0ubuntu0.16.04.1) ...
Selecting previously unselected package nginx-full.
Preparing to unpack .../nginx-full_1.10.0-0ubuntu0.16.04.1_amd64.deb ...
Unpacking nginx-full (1.10.0-0ubuntu0.16.04.1) ...
Selecting previously unselected package nginx-full-dbg.
Preparing to unpack .../nginx-full-dbg_1.10.0-0ubuntu0.16.04.1_amd64.deb ...
Unpacking nginx-full-dbg (1.10.0-0ubuntu0.16.04.1) ...
Processing triggers for ufw (0.35-0ubuntu1) ...
Rules updated for profile 'Apache Full'
Rules updated for profile 'Nginx HTTP'

Processing triggers for systemd (229-4ubuntu4) ...
Processing triggers for ureadahead (0.100.0-19) ...
Processing triggers for man-db (2.7.5-1) ...
Setting up nginx-common (1.10.0-0ubuntu0.16.04.1) ...
Setting up nginx-full (1.10.0-0ubuntu0.16.04.1) ...
Job for nginx.service failed because the control process exited with error code. See "systemctl status nginx.service" and "journalctl -xe" for details.

invoke-rc.d: initscript nginx, action "start" failed.

dpkg: error processing package nginx-full (--configure):
 subprocess installed post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of nginx-full-dbg:
 nginx-full-dbg depends on nginx-full (= 1.10.0-0ubuntu0.16.04.1); however:
  Package nginx-full is not configured yet.

dpkg: error processing package nginx-full-dbg (--configure):

 dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup error from a previous failure.

                          Errors were encountered while processing:
 nginx-full

 nginx-full-dbg

E: Sub-process /usr/bin/dpkg returned an error code (1)
subodh007
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Mohit
  • 749

9 Answers9

148

Shutting down apache2 first before installing nginx should fix this problem:

sudo service apache2 stop
Spl2nky
  • 113
Andrew Chan
  • 1,481
28

Andrew Chan provided the right answer for me. To extend his answer a bit, here's what you can do on the commandline;

stop apache2

sudo systemctl stop apache2.service

prevent apache2 to start at boot

sudo systemctl disable apache2.service

Reinstall nginx

sudo apt-get install nginx

A.R. Winters
  • 281
11

In my case the error is the server has IPv6 disabled. Solution:

Edit /etc/nginx/sites-enabled/default and comment IPv6 out: 

listen [::]:80 default_server;

Reinstall nginx:

apt purge nginx
apt autoremove
apt install nginx
Videonauth
  • 33,815
user551419
  • 111
9

I just had this issue, but the solution was slightly different.

Once I solved a simple site misconfiguration, I was able to update nginx.

Check your nginx error log:

sudo cat /var/log/nginx/error.log|less

Then try again:

sudo apt-get update;sudo apt-get upgrade
Mohammad Kholghi
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Taiger
  • 109
2

In my case nothing helped at all, except of this:

sudo fuser -k 80/tcp

service nginx start
mansim
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1

Before the installation remove any manually added symlinks from /sites-enabled.

David Foerster
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Deto
  • 11
1

In my case it has been a misconfigurated file in /etc/nginx/sites-enabled/ I named them as .old files, but that does not matter. They will be readed and may prevend an successfull installation or start of that service. Be careful with files in that folder and read your error output carefully as discribed by @Taiger

Godot85
  • 11
1

When I checked /var/log/nginx/error.log I saw that the installer was unable to open /var/cache/nginx/microcache

A directory listing showed there was no /var/cache/nginx directory, so I created it and the install succeeded.

Charles Oertel
  • 11
0

I see you want to reinstall Nginx, but we can have the same error when we have Nginx run in Docker container.

In this case, just look at started containers:

user@host:~$ docker ps
CONTAINER ID        IMAGE               COMMAND                  CREATED             
STATUS              PORTS                                      NAMES
f4ee2264d5fb        docker_nginx        "nginx -g 'daemon of…"   5 months ago        Up 2 days           0.0.0.0:80->80/tcp, 0.0.0.0:443->443/tcp   nginx

Just stop it with CONTAINER ID

docker stop f4ee2264d5fb

Then you are able to install Nginx

Pavel Kalashnikov
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