apt-get install mtd-utils
modprobe ubifs
ubiattach /dev/ubi_ctrl -m 5
mount -t ubifs ubi0:rootfs /mnt
mount /dev/mmcblk0p2 /mnt/home/
mount /dev/mmcblk0p1 /mnt/home/user/MyDocs/

for i in sys dev proc; do mount -o bind /$i /mnt/$i; done
chroot /mnt /bin/sh

fuser -k -M -m /mnt/
for i in sys dev proc; do umount /mnt/$i; done
umount /mnt/home/user/MyDocs/
umount /mnt/home/
umount /mnt