ST Boot loader the same as factory

[BJFreeman]

is the boot loader the factory installed one or is another bootloader installed.
I am referring to https://my.st.com/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/Attachments/18225/AN2606.pdf

[LubOlimex]

Hey BJFreeman,

The factory bootloader. Note that for some boards you might need to change the jumpers configuration (and/or press a button) to be able to connect to your PC application.

Best regards,
Lub/OLIMEX

[BJFreeman]

my focus is the OLIMEXINO-STM32 and using the CAN boot referred to in CD00264321.pdf.
in the OLIMEXINO-STM32+CAN_networking_demo/CAN_DEMO/can_cnfg.h it shows CAN1 remap.
so I am trying to figure out how to implement the CAN bootloader