isolated-ota

The isolated-ota library provides a simple interface that allows a Fuchsia system to be installed over the air to a given blobfs and paver from a provided TUF repository and channel.

To use it, you need to make sure your image includes the package //src/sys/pkg/lib/isolated-swd:isolated-swd-components.

It does this by setting up the software delivery stack:

1. pkgfs is launched against the provided blobfs.
2. pkg-cache is launched, using the pkgfs from step 1.
3. pkg-resolver is launched, using the provided repository configuration and channel, along with pkg-cache from step 2.
4. If Omaha configuration is provided (an Omaha app id, and a URL to use for the Omaha server), the omaha-client state machine is launched. It performs an update check once, and the Omaha state machine calls the system-updater with the update package URI returned by Omaha.
5. If no Omaha configuration is provided, isolated-ota launches the system updater directly, using the default update URL.
6. The system updater runs an OTA, resolving all of the packages in the new system using the pkg-resolver from step 3, and paving the images in the update package using the provided paver.