Delta Updates: Making Updates Leaner for Embedded Devices

Explore the concept of delta updates for embedded devices in this conference talk by Felix Mößbauer and Jan Kiszka from Siemens AG. Learn about the limitations of the common a/b rootfs partitioning scheme and discover alternative approaches to reduce update sizes. Understand the benefits of transferring only the delta changes, resulting in faster and more cost-effective updates, especially when downloading via mobile connections. Examine the practical difficulties and pitfalls associated with delta updates, including reproducibility and compression challenges. Gain insights into the evaluation process based on patterns provided in isar-cip-core and the potential extension of the Civil Infrastructure Platform (CIP) project to include a robust pre-integration of the delta update feature. Discover guidelines for determining when delta updates are most beneficial in embedded systems.