xbiancopy never stop

[qoop]

Hi,

I am willing to make a clone of my SD card.
So I get using

Terminal

sudo xbian-config xbiancopy start /dev/root file:/media/A07C-31DD/xbian20201212.img

It makes the img file, but the process never ends...

In my process list there is:

Terminal

sfdisk -uS -N1 -f -q /media/A07C-31DD/xbian20201212.img

I have wait a full night... But still not finished.
My SD card is 64GB, img file is 1,8GB and is empty

I also tryed from Kodi/Xbian interface, same issue.

Any idea?
Can I use another tool (clonezilla seems to handle btrfs)?