Create 1024mb swap partition

openvz_fake_swap.sh

#!/bin/bash
### BEGIN INIT INFO
# Provides:          swap
# Required-Start:
# Required-Stop:
# Default-Start:     2 3 4 5
# Default-Stop:      1 0 6
# Short-Description: add fake swap.
### END INIT INFO

SWAP="${1:-512}"

NEW="$[SWAP*1024]"; TEMP="${NEW//?/ }"; OLD="${TEMP:1}0"

umount /proc/meminfo 2> /dev/null
sed "/^Swap\(Total\|Free\):/s,$OLD,$NEW," /proc/meminfo > /etc/fake_meminfo
mount --bind /etc/fake_meminfo /proc/meminfo

free -m

swap_setup.sh

swapon -s
dd if=/dev/zero of=/swapfile bs=1024 count=1024k
mkswap /swapfile
swapon /swapfile
echo "/swapfile       none    swap    sw      0       0" > /etc/fstab
sudo chown root:root /swapfile 
sudo chmod 0600 /swapfile