Electronic avionics system with additional configuration file

An avionics system carried on board an aircraft, the avionics system comprising a computer platform running a set of application partitions, comprising hardware resources and hosting an operating system, the hardware resources comprising a processor, a random-access memory, and a storage memory, the storage memory comprising:

• a bootstrap package comprising:
• a kernel;
• at least one resource driver;
• a set of system partitions, each system partition including at least one service of the operating system;
• and
• a primary resource configuration table being of a first type containing configuration values of said hardware resources;
• at least one secondary resource configuration table, each secondary resource configuration table being of a second type comprising configuration values of resources used by a respective set of application or system partitions, the second type being distinct from the first type;
• a set of system tertiary resource configuration tables for said set of system partitions, each system tertiary resource configuration table being of a third type comprising configuration values of resources used by a respective system partition, the third type being distinct from the first type and from the second type;
• and
• the set of application partitions, each application partition comprising:
• an avionics software application;
• an application tertiary resource configuration table, each application tertiary resource configuration table being of the third type and containing configuration values of resources used by the respective application partition;
• and
• a boot automaton executed first after the platform is powered up and configured to launch said bootstrap package, wherein said boot automaton is configured to check whether a configuration file is present in said storage memory, and then to launch the configuration file, the configuration file comprising at least one resource configuration table of a type chosen from the first, second and third types, the at least one resource configuration table of the configuration file being then used instead of a respective table of the same type among the primary resource configuration table, the at least one secondary resource configuration table, the set of system tertiary resource configuration tables, and the application tertiary resource configuration table provided in each application partition in the set of application partitions.