B2G/Updating

This page intends to help engineers set up an environment for updating B2G devices. It focuses on low-level details of the updating tools and omits many higher-level topics. The higher-level issues are covered in XXX other doc.

Updating is the process of (i) on a build host, building incremental update packages from old version(s) to a new version; (ii) on the client, finding the right update to download; (iii) downloading the update; (iv) applying the update to existing files on the device. Each of these items are covered below.