SWAPFILE=$(get_new_swapfile)
umask 077
-dd if=/dev/zero of=$SWAPFILE bs=1k count=$(($num_gb * 1024)) conv=excl
+dd if=/dev/zero of=$SWAPFILE bs=1k count=$(($num_gb * 1024 * 1024)) conv=excl
mkswap $SWAPFILE
swapon $SWAPFILE
echo "$SWAPFILE swap swap auto 0 0" >> /etc/fstab