diff --git a/CentOS-RedHat-Installation.md b/CentOS-RedHat-Installation.md
index c9e8086..08a483b 100644
--- a/CentOS-RedHat-Installation.md
+++ b/CentOS-RedHat-Installation.md
@@ -14,6 +14,7 @@ below list.
 	</tr>
 </table>
 
+`For any Linux distribution the installation steps has to be done as user root and with root rights in a terminal session.`
 
 * * *
 
diff --git a/Debian-Installation.md b/Debian-Installation.md
index 285aa52..c385348 100644
--- a/Debian-Installation.md
+++ b/Debian-Installation.md
@@ -14,6 +14,7 @@ below list.
 	</tr>
 </table>
 
+`For any Linux distribution the installation steps has to be done as user root and with root rights in a terminal session.`
 
 * * *
 
diff --git a/Installation.md b/Installation.md
index 9a1d5a8..ddb791a 100644
--- a/Installation.md
+++ b/Installation.md
@@ -13,6 +13,7 @@ below list.
 	</tr>
 </table>
 
+`For any Linux distribution the installation steps has to be done as user root and with root rights in a terminal session.`
 
 * * *
 ## Ubuntu
diff --git a/openSUSE-SLEs-Installation.md b/openSUSE-SLEs-Installation.md
index 320b6c2..12cf3cc 100644
--- a/openSUSE-SLEs-Installation.md
+++ b/openSUSE-SLEs-Installation.md
@@ -14,6 +14,7 @@ below list.
 	</tr>
 </table>
 
+`For any Linux distribution the installation steps has to be done as user root and with root rights in a terminal session.`
 
 * * *