hi, Am Dienstag, den 03.02.2015, 09:21 +0800 schrieb 左宝柱: > I try to mount /dev/mmcblk0p1 to other folder,it success. > root at localhost:~# mount /dev/mmcblk0p1 1/ can you please also try: mount /boot/uboot ... after a fresh boot (this is what the init process does) also please show the output of: cat /proc/filesystems ciao oli