For security reasons, IGEL OS is not installed alongside the target system's legacy operating system, nor can it be installed in a dual-boot configuration. Nevertheless, in situations where it is absolutely necessary to preserve the target system's operating system, it is possible to install IGEL OS onto a live bootable USB memory stick.

To install IGEL OS via the IGEL OS Deployment Appliance:

  1. Ensure that the BIOS of your target devices is set to network installation.
  2. Reboot the target devices.
    If you have chosen attended deployment, the firmware will be installed when the dialog on the devices is confirmed.
    If you have chosen unattended deployment, the firmware will be installed after a 10-second timeout.

    The following mechanism ensures that IGEL OS is deployed only once to each device: After successful installation, the target device informs the appliance that IGEL OS is installed. Based on this information, the appliance adds the device's MAC address to the MAC address filter. You can find this MAC address under Automatically added; see Listing the MAC Address Filter. When a device's MAC address is in the MAC address filter, the device will not receive a DHCP address from the build-in DHCP server. The device will boot into IGEL OS without network.
  3. Continue with Licensing the UDC.