It displayed "FAT32 root dir starts with a bad cluster"..I follow your command at first theres no umount because invalid argument then try to mount and then displayed the errors cluster 2 and 5.

Then type the "fsck -r /dev/mmcblk0p1 > fsck.txt no need to type the first command right?? and then nothing happens the same FAT error. Sorry im noob in x-term programming..