IGEL Linux v5 IGEL Linux v5 How-Tos Upgrading UDC Devices from IGEL Linux v5 to IGEL OS 10 Current: Mass Upgrading Your Devices PDF Download PDF Download page Mass Upgrading Your Devices. Current page Include child pages All pages Mass Upgrading Your Devices There are several methods to upgrade a device from version 5 to version 10. The following methods are considered to be best practice:Zero-Touch Deployment Using the Universal Firmware UpdateThis is the preferred method. It supports zero-touch deployment of a random number of devices.Using the Buddy UpdateWith this method, two thin clients are used as download servers for the thin clients that are to be upgraded. The buddy update method can only be used if FTP is allowed in the network containing your devices. _____ Zero-Touch Deployment Using the Universal Firmware Update Using the Buddy Update ×