Add the steps to install an OS using iDRAC web interface

iDRAC OS Installation Steps.md

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+# OS Installation using iDRAC9 Web Interface
+
+This outlines the detailed steps to install an Operating System(OS) on a server using Dell’s iDRAC9 web interface.
+
+## Prerequisites
+
+1. **iDRAC Login Credentials**: Ensure you have access to iDRAC9, incase you do not have the credentials, ask in the [OPI Slack group](https://join.slack.com/t/opi-project/shared_invite/zt-1ctqtrgkz-WJZrcVPp3P1ACZWjpZP2KQ)
+2. **OS ISO File**: The Operating System ISO image should be downloaded and accessible in your local file system.
+3. **VPN Access**: Confirm you have a VPN connection to ensure, you can connect to the server's iDRAC interface.
+4. **Supported Browsers**: Use the latest version of a supported web browser for the best experience (e.g., Chrome).
+
+### Reference Documentation
+
+- **Dell iDRAC9 User Guide**: [Dell iDRAC9 Documentation](https://dl.dell.com/topicspdf/44010ug_en-us.pdf)
+- **Dell OS Deployment Overview**: [Dell iDRAC9 OS Deployment](https://www.dell.com/support/kbdoc/en-us/000130160/how-to-install-the-operating-system-on-a-dell-poweredge-server-os-deployment)
+
+## Step-by-Step Guide
+
+### Step 1: Access iDRAC9 Web Interface
+
+1. Connect to the F5 VPN.
+2. Open a web browser and enter the iDRAC IP address in the address bar. For example: `https://<iDRAC_IP>`.
+3. Log in using the iDRAC credentials.
+
+![Step 1 - Access iDRAC9](./images/os-install/dell/Login.png)
+
+### Step 2: Launch the Virtual Console
+
+1. From the iDRAC dashboard, navigate and launch the **Virtual Console** from the bottom right of the iDRAC dashboard and ensure you have the browser popups turned on.
+2. This will open a new window with the server's user interface, and a couple of controls.
+
+![Step 2 - Launch Virtual Console](./images/os-install/dell/Console.png)
+
+### Step 3: Mount the OS ISO
+
+1. In the Virtual Console window, select **Virtual Media** from the top menu bar.
+2. Choose **Connect Virtual Media** to enable virtual media features.
+3. Click **Map CD/DVD** and select the Operating System ISO file from your local system and map the device.
+
+![Step 3.1 - Mount OS ISO](./images/os-install/dell/ConnectVirtualMedia.png)
+
+4. Under the Virtual Media Statistics, you will be able to find the Read/Write status, wait until the entire ISO file is read completely i.e, ~1 hour (until there is no change in the file size).
+
+![Step 3.2 - Wait Until OS ISO File is loaded](./images/os-install/dell/VirtualMediaStatistics.png)
+
+### Step 4: Configure Boot Settings
+
+1. In the Virtual Console window, select **Boot** from the top menu bar.
+2. Under the **Boot Controls**, set the virtual CD/DVD drive as the primary boot option. This ensures that the server boots from the mounted OS ISO.
+
+![Step 4 - Configure Boot Settings](./images/os-install/dell/BootOrder.png)
+
+### Step 5: Reboot the Server
+
+1. In the Virtual Console window, select **Power** from the top menu bar.
+2. Select **Reset System (warm reboot)**
+3. Confirm the reboot by clicking **OK**.
+
+![Step 5 - Reboot the Server](./images/os-install/dell/Reboot.png)
+
+### Step 6: Boot into the OS Installer
+
+1. During the server boot, monitor the Virtual Console window.
+2. Once the server starts, it should boot into the mounted OS ISO and display the OS installation menu.
+
+![Step 6 - Boot into OS Installer](./images/os-install/dell/OSBoot.png)
+
+### Step 7: Follow the OS Installation Steps
+
+1. Follow the on-screen prompts to proceed with the OS installation
+
+   - select all default options (unless otherwise noted bellow)
+   - on disk setup: disable LVM
+   - on network setup: select `DHCP` for network settings
+   - on profile setup: put name, servername, username, password all as `opi` for example purposes
+   - Donot install any other packagessoftwares like Docker or Database
+   - on ssh setup: enable `install OpenSSH server`
+
+   The above steps are also detailed [here](https://github.com/opiproject/lab/blob/main/server-setup.md).
+
+![Step 7 - OS Installation Steps](./images/os-install/dell/Installation.png)
+
+2. Once the OS is installed, remember to **disconnect** the virtual media by selecting **Virtual Media** > **Disconnect Virtual Media**.
+3. Rebbot the System
+
+## Troubleshooting Tips
+
+- If the ISO doesn’t mount or the Attach Virtual Media Console doesn’t launch, verify that:
+  - **Virtual Media** is enabled in the iDRAC settings.
+  - Your network connection is stable.
+  - The iDRAC firmware is up to date.
+- If the issue still persists, do the following steps:
+  - Clear your browser cache
+  - Restart iDRAC console