Thistle works with bootloaders in order to support complete filesystem image update. Like all updates performed on the Thistle Platform, it is applied with an A/B policy - allowing to always fallback if an issue is encountered during the application of the update.

As for any bootloader setup supported by the Thistle Update Client, it is required to have 2 partitions available, that will be used as root filesystem alternatively.

Multiple bootloaders are compatible with the Thistle Update Client. We provide reference implementations for Raspberry Pi 4, and U-Boot. If your platform uses a third party bootloader, feel free to explore the Custom bootloader.

In any case, feel free to reach out in our discord channel - we would be more than happy to hear about your bootloader setup and help with integration!