creating a swapfile under Ubuntu linux

[Robert Citek]

At the last stllinux meeting someone asked about how to create a
swapfile. Here's how I do it under Ubuntu.

# become root
sudo su -

# create a 100 MB blank file
dd if=/dev/zero of=/swapfile bs=1M count=100

# setup file as swap
mkswap /swapfile

# enable swapfile
swapon /swapfile

# show swap
swapon -s

# disable swapfile
swapoff /swapfile

Regards,
- Robert