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Creating a Swap File in Linux

I follow the following steps to create a swap-file.

1. # Create the swap file
   sudo fallocate -l 11G /swapfile
   

I have 8GB RAM on my system, so I choose to have 11GB of swap. This is enough to allow me to hibernate if I want to.

1. # Only root should be able to read this file
   sudo chmod 600 /swapfile
   

2. # Set the file as the swap area
   sudo mkswap /swapfile
   

3. # Enable the swap
   sudo swapon /swapfile
   

4. To make this setting permanent, add a record to /etc/fstab

   # in /etc/fstab
   /swapfile swap swap defaults 0 0
   

5. Verify that the changes took effect

   sudo swapon --show
   

References

• https://linuxize.com/post/create-a-linux-swap-file/

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