MBOOT_SCAN_SIZE
boundary = MBOOT_SCAN_SIZE;
char mboot_scan[MBOOT_SCAN_SIZE];
buf_size = MIN(buf_size, MBOOT_SCAN_SIZE);
if (buf_size > BBLK_DATA_RSVD_SIZE + MBOOT_SCAN_SIZE) {
char mboot_scan[MBOOT_SCAN_SIZE];
char mboot_scan[MBOOT_SCAN_SIZE];
if (find_multiboot(buf, MBOOT_SCAN_SIZE, &mboot_off)