Types of AuterionOS Images
Differences between the two image types for production and development purposes as well as signed and unsigned images
Skynodes that are shipped by Auterion as part of the evaluation kit come with unsigned development builds of AuterionOS pre-installed. Skynodes that are integrated by manufacturers into their final product are typically shipped with signed production builds of AuterionOS.
A summary of the two common use cases is shown in the following table:
Once a vehicle is distributed to end-users, the manufacturer should deploy signed production images only. The production image ensures that entry doors such as SSH are locked down and tampering is prevented. Signed images guarantee that no images from other sources than the manufacturer can be installed to cirvumvent the safety guards.
The sections below explain the differences between these image types in more detail:
Depending on your particular circumstances you might receive access to the development or production builds of AuterionOS. Below are the differences between these two types of images, particularly for the case of Skynode:
Installing a signed AuterionOS image prevents future installations of unsigned and therefore unauthorized images on this particular Skynode.
Both production and development images can be signed. Once a signed AuterionOS image is installed onto the device, it will only accept signed images in the future. For this reason developers often work with unsigned development images of AuterionOS and only sign the production images.