> ## Documentation Index
> Fetch the complete documentation index at: https://docs.gcore.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Install an operating system from a template in VMmanager 6

[VMmanager 6](/hosting/virtual-servers/manage/main-features-and-functions-of-vmmanager-6) provides OS templates for reinstalling the operating system on a virtual server. Available distributions include CentOS, Debian, FreeBSD, and Ubuntu. The exact versions depend on the current template catalog.

<Warning>
  Reinstalling the operating system permanently deletes all data on the system disk. Back up any important files before proceeding.
</Warning>

<Steps>
  <Step title="Open VMmanager 6">
    Log in to the [Hosting portal](https://hosting.gcore.com/billmgr), navigate to **Products/Services** → **Virtual private servers**, select the checkbox next to the server, and click **To panel**.
  </Step>

  <Step title="Open the Reinstall OS menu">
    In VMmanager, open the three-dot menu next to the server and select **Reinstall OS**.

    <Frame>
      <img src="https://mintcdn.com/gcore/bP_M3iNvkCNJWoX1/images/docs/hosting/virtual-servers/manage/operating-system/install-an-os-from-a-template-in-vmmanager-6/1-menu.png?fit=max&auto=format&n=bP_M3iNvkCNJWoX1&q=85&s=c4266f04b836baa280ef0e370e5c9831" alt="VMmanager 6 Virtual machines list with the three-dot menu open and Reinstall OS option highlighted" width="4426" height="1598" data-path="images/docs/hosting/virtual-servers/manage/operating-system/install-an-os-from-a-template-in-vmmanager-6/1-menu.png" />
    </Frame>
  </Step>

  <Step title="Select an OS template">
    Choose a distribution from the available templates and select the version from the dropdown.

    <Frame>
      <img src="https://mintcdn.com/gcore/bP_M3iNvkCNJWoX1/images/docs/hosting/virtual-servers/manage/operating-system/install-an-os-from-a-template-in-vmmanager-6/2-configuration-options.png?fit=max&auto=format&n=bP_M3iNvkCNJWoX1&q=85&s=de01f5b9a4c58c0d56734300830d6141" alt="Reinstall OS page showing OS template tiles for CentOS, Debian, FreeBSD, and Ubuntu with Applications and scripts section and VM password field" width="2398" height="1242" data-path="images/docs/hosting/virtual-servers/manage/operating-system/install-an-os-from-a-template-in-vmmanager-6/2-configuration-options.png" />
    </Frame>
  </Step>

  <Step title="Select application scripts (optional)">
    In **Applications and scripts**, select a script to run after OS installation. Scripts automate post-installation setup. Select **Without script** to skip this step.
  </Step>

  <Step title="Set a VM password">
    Enter a new server password or click **Generate** to create one automatically.

    <Note>
      The previous password becomes invalid after reinstallation. To keep the current password, enter it in the password field before clicking **Reinstall**.
    </Note>
  </Step>

  <Step title="Reinstall">
    Click **Reinstall**. The reinstallation may take several minutes. When the server status returns to **Active**, the new operating system is ready.
  </Step>
</Steps>