Multiple system images for over-the-air updates

摘要

In one embodiment, a mobile device performs an over-the-air firmware update by writing the updated firmware to a inactive system image partition, and rebooting the device. The security of the OTA update is maintained through checking a plurality of security signatures in an OTA manifest, and the integrity of the data is maintained by checking a hash value of the downloaded system image.

主权项

1. A method comprising:
by one or more computing systems, executing software from a first partition of system memory; by the one or more computing systems, requesting an over-the-air (OTA) software update from an endpoint; by the one or more computing systems, receiving a manifest for the OTA update; by the one or more computing systems, downloading a payload pursuant to the manifest; by the one or more computing systems, installing the payload into a second partition of system memory; and by the one or more computing systems, rebooting, pursuant to the manifest, to the second partition of system memory.