feat(em): update docs

Author: bene2k1

pages/elastic-metal/how-to/install-server.mdx

@@ -30,11 +30,11 @@ If you ordered your server without a preinstalled operating system, you can inst
 
 1. Click **Elastic Metal** in the **Bare Metal** section of the [Scaleway console](https://console.scaleway.com) side menu. The Elastic Metal dashboard displays.
 2. Click **Install** next to the server you want to install. The server installation wizard displays.
-3. Select the operating system you want to install on the machine.
-   <Message type="note">
-      Elastic Metal servers are installed with a default partition layout. For custom partitioning, read our dedicated documenation [How to configure custom disk partitioning](/elastic-metal/how-to/configure-disk-partitions/).
-   </Message>
-4. Add your [SSH key](/organizations-and-projects/concepts/#ssh-key). If you have already [uploaded a key](/organizations-and-projects/how-to/create-ssh-key/#how-to-upload-the-public-ssh-key-to-the-scaleway-interface), it will appear in the list of keys. Select the keys to grant access to the server by checking the corresponding boxes.
+3. Complete the server installation wizard:
+    - Choose an OS to run on your server or opt for custom installation.
+    - Configure server partitioning. You can either choose a default configuration or [configure your own partitioning](/elastic-metal/how-to/configure-disk-partitions/).
+    - Enter a name and, optionally, add tags to identify your server.
+    - Add your SSH key (required if installing an image on your server). Depending on the OS image, you may also be asked to configure the panel user for your server.
 5. Click **Install server** to begin the installation process.
    <Message type="note">
       The OS installation can take up to one hour. You will be able to access the machine once the installation is complete.

pages/elastic-metal/how-to/reinstall-server.mdx

@@ -29,8 +29,11 @@ An Elastic Metal server can be reinstalled at any time from the [Scaleway consol
 1. Click **Elastic Metal** in the **Bare Metal** section of the [Scaleway console](https://console.scaleway.com) side menu. The Elastic Metal dashboard displays.
 2. Click <Icon name="more" /> next to the server you want to reinstall. A drop-down menu displays.
 3. Click **Reinstall** in the menu to enter the installation wizard.
-4. Choose the operating system that you want to install on the machine.
-5. Add your [SSH key](/organizations-and-projects/concepts/#ssh-key). If you have already [uploaded a key](/organizations-and-projects/how-to/create-ssh-key/#how-to-upload-the-public-ssh-key-to-the-scaleway-interface), it displays in the list of keys. Choose the keys to grant access to the server by ticking or unticking the corresponding checkbox.
-6. Click **Reinstall server** to launch the installation. It will take about 10 minutes to complete.
+4. Complete the server reinstallation wizard:
+    - Choose an OS to run on your server or opt for custom installation.
+    - Configure server partitioning. You can either choose a default configuration or [configure your own partitioning](/elastic-metal/how-to/configure-disk-partitions/).
+    - Enter a name and, optionally, add tags to identify your server.
+    - Add your SSH key (required if installing an image on your server). Depending on the OS image, you may also be asked to configure the panel user for your server.
+6. Click **Reinstall server** to launch the installation.