General :: How To Move /data To SDCard Using Extended Partition

I have a Mocordroid with scp6820a cpu rooted

First some objections:

1- The sdcard is used in vfat filesystem, move simplely /data folder to sdcard will be cause some problems
2- Copy /data to /mnt/sdcard/data will not work completly because we got some error of permission

Code:
adb shell

Code:
cp -r /data /mnt/sdcard
cp: can't create directory '/mnt/sdcard/data/misc/bluetoothd/FA:2B:B7:4E:90:59': Invalid argument
cp: can't create symlink '/mnt/sdcard/data/data/org.mariotaku.twidere/lib': Operation not permitted
cp: can't create '/mnt/sdcard/data/data/com.estrongs.android.pop/files/comm/tool_port': Operation not permitted
cp: can't create symlink '/mnt/sdcard/data/data/com.toss.removeappwidget/lib': Operation not permitted

[Code] .....

So first thing i change size of sdcard, decreasing the partition size, and add a second partition with 3 Gbytes using ext2. To do this

Unmount the sdcard in settings>storage>unmount sdcard. I need discover where is the partitions

Code:

fdisk /dev/block/mmcblk0

[Code] ....

For secure i reboot device, and umount card again. So format the second partition

Code:
mke2fs -t ext2 -m0 -b4096 /dev/block/mmcblk0p2

And reboot again. This was hopeful action that it would recognize the card. But not ...

Code:
# mkdir /mnt/sdext
mount -t ext2 /dev/block/mmcblk0p2 /mnt/sdext
mount: No such device
mount -t ext2 /dev/block/vold/179:2 /mnt/sdext
mount: No such device

In My Epic Fail I was not successful

BEFORE that I wrote i try several tentactivies, apps but i m thinking that use adb will be the more better.

What is the best way, my internal device have less than 200 MB internal, so is too little !!! Maybe i will need change fstab or init scripts.