on fs
# mount mmc partitions
   mount ext4 /dev/block/mmcblk1p2 /system ro
   mount ext4 /dev/block/mmcblk1p3 /cache
   mount ext4 /dev/block/mmcblk1p5 /data

# comment out the above and uncomment these to run from emmc.
#   mount ext4 /dev/block/mmcblk0p3 /system ro
#   mount ext4 /dev/block/mmcblk0p5 /cache
#   mount ext4 /dev/block/mmcblk0p6 /data