the problem is that there isn't rsync in kindle touch... I try again now and this is the result
Code:
zerolucat@zerolucat-PC:~$ sudo rsync -r root@192.168.15.244:/ /home/kindle/
root@192.168.15.244's password:
sh: rsync: not found
rsync: connection unexpectedly closed (0 bytes received so far) [Receiver]
rsync error: remote command not found (code 127) at io.c(601) [Receiver=3.0.8]