Resolved! I am using STM32H7 board and integrated an SD card using SPI and able to mount it in "/". I am storing a file inside the SD card.
HAL_Delay (500); fresult = f_mount(&fs, "/", 1); if (fresult != FR_OK) Serial_PutString ("ERROR!!! in mounting SD CARD...\n\n"); else { Serial_PutString("\n\r SD CARD mounted successfully...\n\n"); fresult = f_open (&fil, "zephyr_20210506_nbi...