Update the installation link

The installation link has changed from /installation/ to /install/. This
commit will update all the remaining links that are missing.

doc/administration/geo/replication/index.md

@@ -178,7 +178,7 @@ The steps below should be followed in the order they appear. **Make sure the Git
 
 If you installed GitLab using the Omnibus packages (highly recommended):
 
-1. [Install GitLab Enterprise Edition](https://about.gitlab.com/installation/) on the server that will serve as the **secondary** node. Do not create an account or log in to the new **secondary** node.
+1. [Install GitLab Enterprise Edition](https://about.gitlab.com/install/) on the server that will serve as the **secondary** node. Do not create an account or log in to the new **secondary** node.
 1. [Upload the GitLab License](../../../user/admin_area/license.md) on the **primary** node to unlock Geo. The license must be for [GitLab Premium](https://about.gitlab.com/pricing/) or higher.
 1. [Set up the database replication](database.md) (`primary (read-write) <-> secondary (read-only)` topology).
 1. [Configure fast lookup of authorized SSH keys in the database](../../operations/fast_ssh_key_lookup.md). This step is required and needs to be done on **both** the **primary** and **secondary** nodes.

doc/administration/geo/replication/security_review.md

@@ -115,7 +115,7 @@ questions from [owasp.org](https://www.owasp.org).
 ### What operating systems support the application?
 
 - Geo imposes no additional restrictions on operating system (see the
-  [GitLab installation](https://about.gitlab.com/installation/) page for more
+  [GitLab installation](https://about.gitlab.com/install/) page for more
   details), however we recommend using the operating systems listed in the [Geo documentation](index.md#requirements-for-running-geo).
 
 ### What details regarding required OS components and lock‐down needs have been defined?

doc/administration/gitaly/index.md

@@ -91,7 +91,7 @@ your GitLab installation has two repository storages, `default` and
 
 First install Gitaly using either Omnibus or from source.
 
-Omnibus: [Download/install](https://about.gitlab.com/installation) the Omnibus GitLab
+Omnibus: [Download/install](https://about.gitlab.com/install/) the Omnibus GitLab
 package you want using **steps 1 and 2** from the GitLab downloads page but
 **_do not_** provide the `EXTERNAL_URL=` value.
 

doc/administration/high_availability/database.md

@@ -31,7 +31,7 @@ deploy the bundled PostgreSQL.
 ### Standalone PostgreSQL using GitLab Omnibus **(CORE ONLY)**
 
 1. SSH into the PostgreSQL server.
-1. [Download/install](https://about.gitlab.com/installation) the Omnibus GitLab
+1. [Download/install](https://about.gitlab.com/install/) the Omnibus GitLab
    package you want using **steps 1 and 2** from the GitLab downloads page.
      - Do not complete any other steps on the download page.
 1. Generate a password hash for PostgreSQL. This assumes you will use the default
@@ -281,7 +281,7 @@ Few notes on the service itself:
 
 #### Installing Omnibus GitLab
 
-First, make sure to [download/install](https://about.gitlab.com/installation)
+First, make sure to [download/install](https://about.gitlab.com/install/)
 GitLab Omnibus **on each node**.
 
 Make sure you install the necessary dependencies from step 1,

doc/administration/high_availability/redis.md

@@ -41,7 +41,7 @@ The steps below are the minimum necessary to configure a Redis server with
 Omnibus:
 
 1. SSH into the Redis server.
-1. [Download/install](https://about.gitlab.com/installation) the Omnibus GitLab
+1. [Download/install](https://about.gitlab.com/install/) the Omnibus GitLab
    package you want using **steps 1 and 2** from the GitLab downloads page.
      - Do not complete any other steps on the download page.
 
@@ -357,7 +357,7 @@ The prerequisites for a HA Redis setup are the following:
 ### Step 1. Configuring the master Redis instance
 
 1. SSH into the **master** Redis server.
-1. [Download/install](https://about.gitlab.com/installation) the Omnibus GitLab
+1. [Download/install](https://about.gitlab.com/install/) the Omnibus GitLab
    package you want using **steps 1 and 2** from the GitLab downloads page.
      - Make sure you select the correct Omnibus package, with the same version
        and type (Community, Enterprise editions) of your current install.
@@ -400,7 +400,7 @@ The prerequisites for a HA Redis setup are the following:
 ### Step 2. Configuring the slave Redis instances
 
 1. SSH into the **slave** Redis server.
-1. [Download/install](https://about.gitlab.com/installation) the Omnibus GitLab
+1. [Download/install](https://about.gitlab.com/install/) the Omnibus GitLab
    package you want using **steps 1 and 2** from the GitLab downloads page.
      - Make sure you select the correct Omnibus package, with the same version
        and type (Community, Enterprise editions) of your current install.

doc/administration/index.md

@@ -11,7 +11,7 @@ GitLab has two product distributions available through [different subscriptions]
 - The open source [GitLab Community Edition (CE)](https://gitlab.com/gitlab-org/gitlab-ce).
 - The open core [GitLab Enterprise Edition (EE)](https://gitlab.com/gitlab-org/gitlab-ee).
 
-You can [install either GitLab CE or GitLab EE](https://about.gitlab.com/installation/ce-or-ee/).
+You can [install either GitLab CE or GitLab EE](https://about.gitlab.com/install/ce-or-ee/).
 However, the features you'll have access to depend on the subscription you choose
 (Core, Starter, Premium, or Ultimate).
 

doc/development/code_review.md

@@ -319,7 +319,7 @@ reviewee.
 ### GitLab-specific concerns
 
 GitLab is used in a lot of places. Many users use
-our [Omnibus packages](https://about.gitlab.com/installation/), but some use
+our [Omnibus packages](https://about.gitlab.com/install/), but some use
 the [Docker images](https://docs.gitlab.com/omnibus/docker/), some are
 [installed from source](../install/installation.md),
 and there are other installation methods available. GitLab.com itself is a large

doc/downgrade_ee_to_ce/README.md

@@ -81,7 +81,7 @@ To downgrade an Omnibus installation, it is sufficient to install the Community
 Edition package on top of the currently installed one. You can do this manually,
 by directly [downloading the package](https://packages.gitlab.com/gitlab/gitlab-ce)
 you need, or by adding our CE package repository and following the
-[CE installation instructions](https://about.gitlab.com/installation/?version=ce).
+[CE installation instructions](https://about.gitlab.com/install/?version=ce).
 
 **Source Installation**
 

doc/install/google_cloud_platform/index.md

@@ -55,7 +55,7 @@ After a few seconds, the instance will be created and available to log in. The n
 
     ![GitLab first sign in](img/ssh_terminal.png)
 
-1. Next, follow the instructions for installing GitLab for the operating system you choose, at <https://about.gitlab.com/installation/>. You can use the IP address from the step above, as the hostname.
+1. Next, follow the instructions for installing GitLab for the operating system you choose, at <https://about.gitlab.com/install/>. You can use the IP address from the step above, as the hostname.
 
 1. Congratulations! GitLab is now installed and you can access it via your browser. To finish installation, open the URL in your browser and provide the initial administrator password. The username for this account is `root`.
 

doc/install/requirements.md

@@ -30,7 +30,7 @@ For the installations options, see [the main installation page](README.md).
 - macOS
 
 Installation of GitLab on these operating systems is possible, but not supported.
-Please see the [installation from source guide](installation.md) and the [installation guides](https://about.gitlab.com/installation/) for more information.
+Please see the [installation from source guide](installation.md) and the [installation guides](https://about.gitlab.com/install/) for more information.
 
 ### Microsoft Windows
 

doc/intro/README.md

@@ -41,6 +41,6 @@ Use the built-in continuous integration in GitLab.
 
 Install and update your GitLab installation.
 
-- [Install GitLab](https://about.gitlab.com/installation/)
+- [Install GitLab](https://about.gitlab.com/install/)
 - [Update GitLab](https://about.gitlab.com/update/)
 - [Explore Omnibus GitLab configuration options](https://docs.gitlab.com/omnibus/settings/configuration.html)

doc/university/support/README.md

@@ -45,7 +45,7 @@ It's important to understand how to install GitLab in the same way that our user
 
 Sometimes we need to upgrade customers from old versions of GitLab to latest, so it's good to get some experience of doing that now.
 
-- [Installation Methods](https://about.gitlab.com/installation/):
+- [Installation Methods](https://about.gitlab.com/install/):
   - [Omnibus](https://gitlab.com/gitlab-org/omnibus-gitlab/)
   - [Docker](https://gitlab.com/gitlab-org/gitlab-ce/tree/master/docker)
   - [Source](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/install/installation.md)