Add Swap Space To System

We can add swap space to the system by following method -

Check for existing swap space

sudo swapon --show

Create a new swap space

sudo fallocate -l 2G /swapfile
sudo chmod 600 /swapfile

Enable swap space

sudo mkswap /swapfile
sudo swapon /swapfile

Verify that the swap space exists

sudo swapon --show

Make swap persistent upon restart

echo '/swapfile none swap sw 0 0' | sudo tee -a /etc/fstab

Source: DigitalOceanarrow-up-right

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