Get http://sourceforge.net/projects/partclone/ on ubuntu

Backup:

sudo partclone.ntfs -c -s /dev/sdb5 -o ./marie_win.img  -L ./partclone.log

Restore:

sudo umount /dev/sdb1
jm@toshibalaptop:~$ sudo partclone.ntfs -r -s ./marie_win.img -o /dev/sdb1 -L ./partclone.log