Ubuntu xenial, apache; sudo: a2enmod: command not found

[Dan Hughes]

Following along the docs at https://www.phusionpassenger.com/library/walkthroughs/deploy/ruby/ownserver/apache/oss/xenial/install_passenger.html , having reached step 2, install passenger, I get the above error. I'd appreciate some advice about how to troubleshoot this. I've restarted the terminal session and had no joy. I get a similar error on apache2ctl. If you can share any ideas, thank you.

From the the terminal -

$ sudo apt-get install -y libapache2-mod-passenger

Reading package lists... Done

Building dependency tree

Reading state information... Done

The following additional packages will be installed:

  passenger passenger-dev passenger-doc

Suggested packages:

  www-browser

The following NEW packages will be installed:

  passenger-dev passenger-doc

The following packages will be upgraded:

  libapache2-mod-passenger passenger

2 upgraded, 2 newly installed, 0 to remove and 6 not upgraded.

Need to get 5,834 kB of archives.

After this operation, 34.7 MB of additional disk space will be used.

Get:1 https://oss-binaries.phusionpassenger.com/apt/passenger xenial/main amd64 libapache2-mod-passenger amd64 1:5.1.1-1~xenial1 [314 kB]

Get:2 https://oss-binaries.phusionpassenger.com/apt/passenger xenial/main amd64 passenger amd64 1:5.1.1-1~xenial1 [1,784 kB]

Get:3 https://oss-binaries.phusionpassenger.com/apt/passenger xenial/main amd64 passenger-dev amd64 1:5.1.1-1~xenial1 [2,697 kB]

Get:4 https://oss-binaries.phusionpassenger.com/apt/passenger xenial/main amd64 passenger-doc all 1:5.1.1-1~xenial1 [1,039 kB]

Fetched 5,834 kB in 1s (4,273 kB/s)

(Reading database ... 66806 files and directories currently installed.)

Preparing to unpack .../libapache2-mod-passenger_1%3a5.1.1-1~xenial1_amd64.deb ...

Unpacking libapache2-mod-passenger (1:5.1.1-1~xenial1) over (5.0.27-2) ...

Preparing to unpack .../passenger_1%3a5.1.1-1~xenial1_amd64.deb ...

Unpacking passenger (1:5.1.1-1~xenial1) over (5.0.27-2) ...

Selecting previously unselected package passenger-dev.

Preparing to unpack .../passenger-dev_1%3a5.1.1-1~xenial1_amd64.deb ...

Unpacking passenger-dev (1:5.1.1-1~xenial1) ...

Selecting previously unselected package passenger-doc.

Preparing to unpack .../passenger-doc_1%3a5.1.1-1~xenial1_all.deb ...

Unpacking passenger-doc (1:5.1.1-1~xenial1) ...

Processing triggers for man-db (2.7.5-1) ...

Setting up passenger (1:5.1.1-1~xenial1) ...

Setting up libapache2-mod-passenger (1:5.1.1-1~xenial1) ...

Installing new version of config file /etc/apache2/mods-available/passenger.conf ...

Installing new version of config file /etc/apache2/mods-available/passenger.load ...

Setting up passenger-dev (1:5.1.1-1~xenial1) ...

Setting up passenger-doc (1:5.1.1-1~xenial1) ...

.....

$ sudo apt-get upgrade libapache2-mod-passenger

Reading package lists... Done

Building dependency tree

Reading state information... Done

libapache2-mod-passenger is already the newest version (1:5.1.1-1~xenial1).

Calculating upgrade... Done

The following packages will be upgraded:

  python3-distupgrade snap-confine snapd ubuntu-core-launcher ubuntu-release-upgrader-core update-notifier-common

6 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

Need to get 8,460 kB of archives.

After this operation, 15.5 MB of additional disk space will be used.

Do you want to continue? [Y/n] y

Get:1 http://gb1-a.clouds.archive.ubuntu.com/ubuntu xenial-updates/main amd64 snap-confine amd64 2.20.1ubuntu1 [42.1 kB]

Get:2 http://gb1-a.clouds.archive.ubuntu.com/ubuntu xenial-updates/main amd64 ubuntu-core-launcher amd64 2.20.1ubuntu1 [2,396 B]

Get:3 http://gb1-a.clouds.archive.ubuntu.com/ubuntu xenial-updates/main amd64 update-notifier-common all 3.168.3 [165 kB]

Get:4 http://gb1-a.clouds.archive.ubuntu.com/ubuntu xenial-updates/main amd64 ubuntu-release-upgrader-core all 1:16.04.20 [29.3 kB]

Get:5 http://gb1-a.clouds.archive.ubuntu.com/ubuntu xenial-updates/main amd64 python3-distupgrade all 1:16.04.20 [104 kB]

Get:6 http://gb1-a.clouds.archive.ubuntu.com/ubuntu xenial-updates/main amd64 snapd amd64 2.20.1ubuntu1 [8,117 kB]

Fetched 8,460 kB in 0s (27.5 MB/s)

(Reading database ... 66964 files and directories currently installed.)

Preparing to unpack .../snap-confine_2.20.1ubuntu1_amd64.deb ...

Unpacking snap-confine (2.20.1ubuntu1) over (1.0.43-0ubuntu1~16.04.1) ...

Preparing to unpack .../ubuntu-core-launcher_2.20.1ubuntu1_amd64.deb ...

Unpacking ubuntu-core-launcher (2.20.1ubuntu1) over (1.0.43-0ubuntu1~16.04.1) ...

Preparing to unpack .../update-notifier-common_3.168.3_all.deb ...

Unpacking update-notifier-common (3.168.3) over (3.168.2) ...

Preparing to unpack .../ubuntu-release-upgrader-core_1%3a16.04.20_all.deb ...

Unpacking ubuntu-release-upgrader-core (1:16.04.20) over (1:16.04.19) ...

Preparing to unpack .../python3-distupgrade_1%3a16.04.20_all.deb ...

Unpacking python3-distupgrade (1:16.04.20) over (1:16.04.19) ...

Preparing to unpack .../snapd_2.20.1ubuntu1_amd64.deb ...

Warning: Stopping snapd.service, but it can still be activated by:

  snapd.socket

Unpacking snapd (2.20.1ubuntu1) over (2.17.1ubuntu1) ...

Processing triggers for man-db (2.7.5-1) ...

Setting up snap-confine (2.20.1ubuntu1) ...

Installing new version of config file /etc/apparmor.d/usr.lib.snapd.snap-confine ...

Setting up ubuntu-core-launcher (2.20.1ubuntu1) ...

Setting up update-notifier-common (3.168.3) ...

Setting up python3-distupgrade (1:16.04.20) ...

Setting up ubuntu-release-upgrader-core (1:16.04.20) ...

Setting up snapd (2.20.1ubuntu1) ...

Installing new version of config file /etc/X11/Xsession.d/65snappy ...

......

ubuntu@srv-ow00i:~$ sudo a2enmod passenger

sudo: a2enmod: command not found

[Camden Narzt]

Which package did you use to install apache itself? The logs show it was already installed before you installed passenger's apache module.