Well, after about five hours, i managed to put the debian in a new partition. The problem was that i couldnt understand how to copy the files of image with the gtar and i tried to copy them with the pcmanfm and then on my desktop computer, but i couldnt copy the /dev folder. Until I read somewhere that generally on linux the /dev folder is created automatically. It s impossible to copy that files on linux because the system croushes