v0.13.9

• Changes

  • Document application config keys. These are now official. If you had been
    modifying the application config for regression tests, note that the :env
    key is now :fwup_env and :revert_fw_path is now ops_fw_path.

  • Add Nerves.Runtime.firmware_slots/0 to return a map indicating the
    currently running slot and the one that will be run on next boot. Please
    update any calls to get "nerves_fw_active" directly from
    Nerves.Runtime.KV since the new firmware_slots/0 is more accurate and
    handles more scenarios on Nerves devices.

  • Add firmware_validation_status/0 to allow callers to know whether the
    status is really unknown. This isn't possible with firmware_valid?/0 which
    is problematic since unknown could mean that the U-Boot environment is
    unreadable and a fix is needed. Instead firmware_valid?/0 returns true
    in that case since this could be an old Nerves device without validation.

  • Replace call to Busybox mount to determine filesystem read-only status
    with a module that reads /proc/self/mountinfo.

  • Expose mount information via Nerves.Runtime.MountInfo. If you had been
    using MountParser, please update your calls. MountParser was not
    intended to be public API (@moduledoc false) and was removed.

  • Serialize calls to fwup to reduce chance of accidental eMMC/MicroSD
    corruption

  • Bulletproof many functions to return errors if the :nerves_runtime
    application stops. This can happen when the device is not in a good state
    and raising in NervesRuntime KV and FwupOps functions made things worse.
    This should be a rare case.