Description: This special priority level is applicable only when the file is an image. Setting this priority level on the image file identifies the order in which the system will choose a new image to load when it finds the active image to be corrupted. For example, if the system is loading and find that the designated active image is corrupted, the system will first look for the next image with the smallest priority number (priority number 1 is highest priority and priority 255 is the lowest priority) to try to attempt to load next. It will continue in this way until it finds a valid image to load.

Note that you can even set the priority level of an image that is currently marked as the active image. This is because if later you change the active image to another image file, then this file configured priority will applies.

If there is no priority set on any image file, then the system will boot from a randomly selected file if it finds that the current active image is corrupted.