config BOOT0_DEBUG bool "boot0 debug support" default n help Say Y here if you want to enable boot0 debug messages. On an error, boot0 will print one of the following: > start_reloc was called * Boot partition found J Jumping to partition booter < read_lba R INT13/F42 error config BOOT0_VERBOSE bool "boot0 verbose support" default y help Say Y here if you want to enable boot0 verbose messages. boot0 will print out status updates as it executes to notify the user of progress in the initial boot sequence. When in doubt, say "Y".