Creating a swap file

The swap file is a .img file to store the swap file

1. Creating a directory to store the swap

mkdir /media/fasthdd

2. Create the swap file

dd if=/dev/zero of=/media/fasthdd/swapfile.img bs=1024 count=1M

This will take a few seconds or minutes depending on the size.

This will create a 1GB swap
If you want a bigger swap, set the count number to like 4M for 4GB or 8M for 8GB

3. Bake the swap

mkswap /media/fasthdd/swapfile.img

4. Activate the swap
   This will ensure that the file will be activated on boot. Edit the /etc/fstab file

nano /etc/fstab

and add this below the default /swap.img

/media/fasthdd/swapfile.img swap swap sw 0 0

Optionally, you can comment that swap out.