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Production and Dev 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. The sections below explain the differences between these image types, and when to use which one.

Production versus Development AuterionOS Images

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:
Feature
Production Build
Development Build
AuterionOS Image Signature
These images are typically signed (see below for more details on signatures)
These images are typically not signed (see below for more details on signatures)
SSH
Access only with authorized keys that were included in AuterionOS before
Access to anyone with the default logins "root/auterion" and "auterion/auterion"
Serial Console of Flight Controller
Disabled
Full Nuttx Shell
Serial Console of Mission Computer
Disabled
Full TTY shell
Serial Console of Bootloader
Disabled
Enabled
User account "auterion"
Nonexistent
Enabled
APX4 Binary
"Production" APX4 binary on mission computer is used for flashing
"Development" APX4 binary on mission computer is used for flashing
APX4 Parameters
Only a "safe" subset of parameters can be changed
All APX4 parameters can be changed to arbitrary values, which can cause damage to the drone or harm people
Contact [email protected], if you are a manufacturer and need help setting up production builds, or if you are a developer required to work with a production build where you do not have SSH access.

Signed versus Unsigned AuterionOS Images

Signing an AuterionOS image prevents future installations of un-authorized images.
Both types of images, production and development, 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.