Increasing swap size. Only tested on the ubuntu/trusty64 Vagrant box. CREDIT GOES TO ---> http://jeqo.github.io/blog/devops/vagrant-quickstart/

increase_swap.sh

#!/bin/sh

# size of swapfile in megabytes
swapsize=8000

# does the swap file already exist?
grep -q "swapfile" /etc/fstab

# if not then create it
if [ $? -ne 0 ]; then
  echo 'swapfile not found. Adding swapfile.'
  fallocate -l ${swapsize}M /swapfile
  chmod 600 /swapfile
  mkswap /swapfile
  swapon /swapfile
  echo '/swapfile none swap defaults 0 0' >> /etc/fstab
else
  echo 'swapfile found. No changes made.'
fi

# output results to terminal
df -h
cat /proc/swaps
cat /proc/meminfo | grep Swap

great script, thanks!!

A more extensive explanation here: http://www.cyberciti.biz/faq/linux-add-a-swap-file-howto/

Thanks !

For me it only worked putting sudo in front of every command and replaced

echo '/swapfile none swap defaults 0 0' >> /etc/fstab

by

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

I'm calling this script from my Vagrantfile.

@luizs81 normally Vagrant runs the provision script with sudo. Maybe you have something like this config.vm.provision :shell, privileged: false, path: "provision.sh", with privileged: false. It could be intentional, though.

@sergiopereiraTT You are right! I indeed had the privileged: false in my Vagrantfile. Thanks for the heads up.

You are helpful, your script is very clean. If logged in with vagrant, use sudo infront of script eg sudo ./swapt.sh