antonioribeiro/gist:fd98803ab9004e9daeef

Last active August 29, 2015 14:01

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Swap

Raw

How to create Swap on Linux / Ubuntu

Enable swap

sudo swapon -s

Create a 2GB file

 sudo dd if=/dev/zero of=/swapfile bs=1024 count=2048k

Create the swap

sudo mkswap /swapfile

You should get something like this in return

Setting up swapspace version 1, size = 2097148 KiB
no label, UUID=b6f6f8ba-d8c7-4c12-9c1d-fa96826d9075

Turn the swap on

sudo swapon /swapfile

Edit your /etc/fstab and add to it:

/swapfile       none    swap    sw      0       0

Set swapiness to 10 so you don't get a poor performance

echo 10 | sudo tee /proc/sys/vm/swappiness
echo vm.swappiness = 10 | sudo tee -a /etc/sysctl.conf

Protect the swap file

sudo chown root:root /swapfile 
sudo chmod 0600 /swapfile

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