To make sure that your upgrade can be successful, check the following warnings and notes; a warning symbol indicates that irreversible damage can be done to your devices.
Existing partitions: Any existing partition on the target drive of your device will be deleted. The installer will repartition the target device. The overall size of the newly created partitions will be calculated based on the available disk space. The minimum disk usage is 2 GB, the maximum is 16 GB.
No downgrade: You cannot restore your IGEL Linux v5 system once you have migrated to IGEL Linux 10. The device storage is overwritten completely with a new partitioning scheme.
Features (e.g. clients): IGEL Linux 10 does not have the complete feature set of IGEL Linux v5. Make sure that the current version of IGEL Linux 10 meets your requirements. For details, refer to the appropriate release notes.
License proxy: Do not upgrade to IGEL Linux 10 if the device is functioning as a license proxy. This functionality is not supported by IGEL Linux 10.
Custom partitions: The contents of custom partitions will be deleted by the upgrade. Make sure to back up the contents and restore them after the upgrade has finished. Besides becoming dysfunctional after the upgrade, applications and kernel drivers in a custom partition might corrupt the upgrade. For this reason, make sure to first test the upgrade on a characteristic device; see Testing the Upgrade. We recommend that you disable custom partitions when upgrading; you can enable them once the upgrade has been successfully completed.
Custom commands: The continued availability of custom commands cannot be guaranteed. Besides becoming dysfunctional after the upgrade, custom commands might corrupt the upgrade. For this reason, make sure to first test the upgrade on a characteristic device; see Testing the Upgrade. In general, custom commands must be adapted for IGEL Linux 10. We recommend that you disable custom commands when upgrading; you can enable them once the upgrade has been successfully completed.
Power supply: Ensure that the device is not running on battery power, i.e. it must be connected to a power supply.
Network: All devices must be connected to a WLAN or LAN. LAN is the recommended option. The device will not be upgraded if connected to PPTP, OpenVPN, NCP, CAG VPN, genucard or LTE.
Hardware support: Make sure that your devices support IGEL Linux 10; please refer to Devices Supported by UDC3.