Explanation
https://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/sw/firmware-mgmt/gui/2-2/ b_GUI_Firmware_Management_22/b_GUI_Firmware_Management_22_chapter_0101.html Infrastructure software bundle-This bundle is also called the A bundle. It contains the firmware images that the fabric interconnects, IO Modules, and Cisco UCS Manager require to function.
Board controller is a server component included in the server bundle not the infrastructure bundle Graphical user interface, text, application, letter Description automatically generated