# mount -a mount -a unknown option -- amount: invalid option -a # mkdir /system/sd/data mkdir /system/sd/data mkdir failed for /system/sd/data, File exists # mv /data/data/* /system/sd/data mv /data/data/* /system/sd/data failed on '/data/data/BandB.Tool.Bluetooth.ON.OFF' - Cross-device link # rmdir /data/datar rmdir /data/datar rmdir failed for /data/datar, No such file or directory # ln -s /system/sd/data /data/data ln -s /system/sd/data /data/data link failed File exists #