diff --git a/install/README.md b/install/README.md
index 6efac4e39..02853108f 100644
--- a/install/README.md
+++ b/install/README.md
@@ -8,5 +8,6 @@ Select your preferred distribution:
 
 For further information, see:
 
+* The [the upgrading document](../Upgrading.md).
 * The [developer guide](https://github.com/kata-containers/documentation/blob/master/Developer-Guide.md)
 * The [runtime documentation](https://github.com/kata-containers/runtime/blob/master/README.md)
diff --git a/install/centos-installation-guide.md b/install/centos-installation-guide.md
index 55d56d24f..76da61db9 100644
--- a/install/centos-installation-guide.md
+++ b/install/centos-installation-guide.md
@@ -1,6 +1,11 @@
 # Installing Kata Containers on CentOS
 
-> **Note:** Kata Containers packages are available for CentOS version 7 (currently `x86_64` only).
+> **Notes:**
+>
+> - Kata Containers packages are available for CentOS version 7 (currently `x86_64` only).
+>
+> - If you are installing on a system that already has Clear Containers or `runv` installed,
+>   first read [the upgrading document](../Upgrading.md).
 
 This step is only required in case Docker is not installed on the system.
 1. Install the latest version of Docker with the following commands:
diff --git a/install/fedora-installation-guide.md b/install/fedora-installation-guide.md
index 699c1f95c..ccedfb8e5 100644
--- a/install/fedora-installation-guide.md
+++ b/install/fedora-installation-guide.md
@@ -1,6 +1,11 @@
 # Installing Kata Containers on Fedora
 
-> **Note:** Kata Containers packages are available for Fedora\* versions **26** and **27** (currently `x86_64` only).
+> **Notes:**
+>
+> - Kata Containers packages are available for Fedora\* versions **26** and **27** (currently `x86_64` only).
+>
+> - If you are installing on a system that already has Clear Containers or `runv` installed,
+>   first read [the upgrading document](../Upgrading.md).
 
 This step is only required in case Docker is not installed on the system.
 1. Install the latest version of Docker with the following commands:
diff --git a/install/ubuntu-installation-guide.md b/install/ubuntu-installation-guide.md
index 43a6e102d..2ea456188 100644
--- a/install/ubuntu-installation-guide.md
+++ b/install/ubuntu-installation-guide.md
@@ -1,6 +1,11 @@
 # Installing Kata Containers on Ubuntu
 
-> **Note:** Kata Containers packages are available for Ubuntu\* **16.04** and **17.10** (currently `x86_64` only).
+> **Notes:**
+>
+> - Kata Containers packages are available for Ubuntu\* **16.04** and **17.10** (currently `x86_64` only).
+>
+> - If you are installing on a system that already has Clear Containers or `runv` installed,
+>   first read [the upgrading document](../Upgrading.md).
 
 This step is only required in case Docker is not installed on the system.
 1. Install the latest version of Docker with the following commands: