IGEL OS 11.09.210 IGEL OS Articles Update and Upgrade Upgrading from IGEL OS 10 to IGEL OS 11 Upgrading IGEL Devices from IGEL OS 10 to IGEL OS 11 Current: Troubleshooting PDF Download PDF Download page Troubleshooting. Current page Include child pages All pages Troubleshooting This section describes possible error cases and solutions. Regaining a Usable System Getting Error Messages Starting a New Upgrade Attempt Starting Another Upgrade Attempt after 5 Retries ×