diff --git a/engine/install/binaries.md b/engine/install/binaries.md
index cb01aa2f54..e42fb7ff64 100644
--- a/engine/install/binaries.md
+++ b/engine/install/binaries.md
@@ -137,6 +137,10 @@ instructions for enabling and configuring AppArmor or SELinux.
     This command downloads a test image and runs it in a container. When the
     container runs, it prints a message and exits.
 
+You have now successfully installed and started Docker Engine.
+
+{% include root-errors.md %}
+
 ## Install client binaries on macOS
 
 > **Note**
diff --git a/engine/install/centos.md b/engine/install/centos.md
index e75cbc418c..267c388bbe 100644
--- a/engine/install/centos.md
+++ b/engine/install/centos.md
@@ -166,7 +166,7 @@ $ sudo yum-config-manager \
     This command downloads a test image and runs it in a container. When the
     container runs, it prints a confirmation message and exits.
 
-You have now successfully installed and started Docker Engine. 
+You have now successfully installed and started Docker Engine.
 
 {% include root-errors.md %}
 
@@ -210,7 +210,9 @@ a new file each time you want to upgrade Docker Engine.
     This command downloads a test image and runs it in a container. When the
     container runs, it prints a confirmation message and exits.
 
-You have now successfully installed and started Docker Engine. The docker user group exists but contains no users, which is why you’re required to use sudo to run Docker commands. Continue to [Linux postinstall](linux-postinstall.md) to allow non-privileged users to run Docker commands and for other optional configuration steps.
+You have now successfully installed and started Docker Engine.
+
+{% include root-errors.md %}
 
 #### Upgrade Docker Engine
 
diff --git a/engine/install/debian.md b/engine/install/debian.md
index 032ceb9dba..40fc10a920 100644
--- a/engine/install/debian.md
+++ b/engine/install/debian.md
@@ -174,7 +174,7 @@ Raspbian.
    This command downloads a test image and runs it in a container. When the
    container runs, it prints a confirmation message and exits.
 
-You have now successfully installed and started Docker Engine. 
+You have now successfully installed and started Docker Engine.
 
 {% include root-errors.md %}
 
@@ -231,11 +231,9 @@ download a new file each time you want to upgrade Docker Engine.
    This command downloads a test image and runs it in a container. When the
    container runs, it prints a confirmation message and exits.
 
-You have now successfully installed and started Docker Engine. The `docker` user
-group exists but contains no users, which is why you're required to use `sudo`
-to run Docker commands. Continue to [Linux post-install](linux-postinstall.md)
-to allow non-privileged users to run Docker commands and for other optional
-configuration steps.
+You have now successfully installed and started Docker Engine.
+
+{% include root-errors.md %}
 
 #### Upgrade Docker Engine
 
diff --git a/engine/install/fedora.md b/engine/install/fedora.md
index 2ee95d6d02..35f0b2b067 100644
--- a/engine/install/fedora.md
+++ b/engine/install/fedora.md
@@ -144,10 +144,9 @@ $ sudo dnf config-manager \
     This command downloads a test image and runs it in a container. When the
     container runs, it prints a message and exits.
 
-This installs and runs Docker Engine. Use `sudo` to run Docker
-commands. Continue to [Linux postinstall](linux-postinstall.md) to allow
-non-privileged users to run Docker commands and for other optional configuration
-steps.
+You have now successfully installed and started Docker Engine.
+
+{% include root-errors.md %}
 
 #### Upgrade Docker Engine
 
@@ -190,7 +189,7 @@ a new file each time you want to upgrade Docker Engine.
     This command downloads a test image and runs it in a container. When the
     container runs, it prints a message and exits.
 
-This installs and runs Docker Engine.
+You have now successfully installed and started Docker Engine.
 
 {% include root-errors.md %}
 
diff --git a/engine/install/rhel.md b/engine/install/rhel.md
index e20b2dcfcd..a937980d66 100644
--- a/engine/install/rhel.md
+++ b/engine/install/rhel.md
@@ -154,7 +154,7 @@ $ sudo yum-config-manager \
     This command downloads a test image and runs it in a container. When the
     container runs, it prints a message and exits.
 
-This installs and runs Docker Engine. 
+You have now successfully installed and started Docker Engine.
 
 {% include root-errors.md %}
 
@@ -199,10 +199,9 @@ a new file each time you want to upgrade Docker Engine.
     This command downloads a test image and runs it in a container. When the
     container runs, it prints a message and exits.
 
-This installs and runs Docker Engine. Use `sudo` to run Docker commands.
-Continue to [Post-installation steps for Linux](linux-postinstall.md) to allow
-non-privileged users to run Docker commands and for other optional configuration
-steps.
+You have now successfully installed and started Docker Engine.
+
+{% include root-errors.md %}
 
 #### Upgrade Docker Engine
 
diff --git a/engine/install/sles.md b/engine/install/sles.md
index 357eb2af75..3470a993a2 100644
--- a/engine/install/sles.md
+++ b/engine/install/sles.md
@@ -173,7 +173,7 @@ $ sudo zypper addrepo {{ download-url-base }}/docker-ce.repo
     This command downloads a test image and runs it in a container. When the
     container runs, it prints a message and exits.
 
-This installs and runs Docker Engine.
+You have now successfully installed and started Docker Engine.
 
 {% include root-errors.md %}
 
@@ -218,10 +218,9 @@ a new file each time you want to upgrade Docker Engine.
     This command downloads a test image and runs it in a container. When the
     container runs, it prints a message and exits.
 
-This installs and runs Docker Engine. Use `sudo` to run Docker commands.
-Continue to [Post-installation steps for Linux](linux-postinstall.md) to allow
-non-privileged users to run Docker commands and for other optional configuration
-steps.
+You have now successfully installed and started Docker Engine.
+
+{% include root-errors.md %}
 
 #### Upgrade Docker Engine
 
diff --git a/engine/install/ubuntu.md b/engine/install/ubuntu.md
index afe1d44503..1fd0a97f2b 100644
--- a/engine/install/ubuntu.md
+++ b/engine/install/ubuntu.md
@@ -171,11 +171,7 @@ Docker from the repository.
 
 You have now successfully installed and started Docker Engine.
 
-> Receiving errors when trying to run without root?
->
-> The `docker` user group exists but contains no users, which is why you're required 
-> to use `sudo` to run Docker commands. Continue to [Linux post-install](linux-postinstall.md)
-> to allow non-privileged users to run Docker commands and for other optional configuration steps.
+{% include root-errors.md %}
 
 #### Upgrade Docker Engine
 
@@ -230,11 +226,9 @@ download a new file each time you want to upgrade Docker Engine.
    This command downloads a test image and runs it in a container. When the
    container runs, it prints a confirmation message and exits.
 
-You have now successfully installed and started Docker Engine. The `docker` user
-group exists but contains no users, which is why you're required to use `sudo`
-to run Docker commands. Read [Linux post-install](linux-postinstall.md)
-to allow non-privileged users to run Docker commands and for other optional
-configuration steps.
+You have now successfully installed and started Docker Engine.
+
+{% include root-errors.md %}
 
 #### Upgrade Docker Engine