Rework overview to descriptive text

Author: Akshay Gadhave

guides/common/modules/con_overview-of-installation.adoc

@@ -3,32 +3,32 @@
 [id="overview-of-the-installation-process"]
 = Overview of the installation process
 
-. Deploy and configure a {EL} system.
-For more information, see xref:planning-{project-context}-server-installation_{context}[]
-. Configure your network environment for {Project} installation.
-For more information, see xref:preparing-environment-for-{project-context}-server-installation_{context}[]
-. Optional: If you want to use an external DB
-For more information, see xref:preparing-for-using-external-databases_{context}[]
-ifdef::satellite,katello,orcharhino[]
-. Optional: If you use an HTTP proxy, configure the proxy to connect to Red{nbsp}Hat CDN.
-For more information, see xref:configuring-http-proxy-to-connect-to-cdn_{context}[]
-endif::[]
-ifdef::satellite[]
-. Register the {EL} system to RHSM.
-For more information, see xref:registering-to-red-hat-subscription-management_{context}[]
-endif::[]
-. Configure repositories for installation.
-For more information, see xref:configuring-repositories_{context}[]
-. Install the {Project} packages.
-For more information, see xref:Installing_Server_Packages_{context}[]
-. Execute the {foreman-installer}
-For more information, see xref:configuring-server_{context}[]
-ifdef::satellite[]
-. Import the Red{nbsp}Hat subscription manifest
-For more information, see xref:Importing_a_Red_Hat_Subscription_Manifest_into_Server_{context}[]
-endif::[]
-. Optional: Review and perform any additional configuration
-xref:performing-additional-configuration-on-server_{context}[]
+The {Project} installation process can be broken down into three main phases:
+* Planning
+* Server preparation
+* Installation and configuration
+
+.Planning
+Make sure that your infrastructure meets the prerequisites for installation:
+
+* Ensure your hardware and software meet the minimum requirements for CPU, RAM, and storage space.
+* Plan your network setup, including DNS resolution and port/firewall configurations.
+* For large deployments (e.g., more than 5,000 hosts), select a predefined performance profile to optimize your system.
+
+.Server preparation
+Configure the operating system and the repositoties for installating {Project}:
+
+* Install {EL} 9 on a freshly installed system.
+* Verify that the hostname of your {ProjectServer} resolves correctly.
+* Configure your system to access the necessary repositories, which contain the {Project} packages.
+
+.Installation and configuration
+Install {Project} packages,  execute the `{foreman-installer}`, and perform any additional configuration
+
+* Install the {Project} package and all its dependencies.
+* Use the `{foreman-installer}` command to perform the initial server setup.
+* Import your subscription manifest.
+* Optional: Enable additional features like remote execution, configuring custom SSL certificates, and email notifications.
 
 .Additional resources
 * {PlanningDocURL}[{PlanningDocTitle}]