root_backup.sh
mkdir /tmp/root-for-backup && mount / /tmp/root-for-backup -o bind && tar cvpzf /tmp/my_root.tar.gz --exclude=/tmp/root-for-backup/tmp/my_root.tar.gz /tmp/root-for-backup/* tar -xzpfv /tmp/my_root.tar.gz umount /tmp/root-for-backup