#!/bin/bash
#Copyright 2002 William Stearns <wstearns@pobox.com>
#Based on work by Jeff Dike <jdike@karaya.com>

SWAPMEGS=${SWAPMEGS:-126}

if [ -f swap ] || [ -f swap.old ]; then
    echo Moving old swapspace out of the way...
    if [ -f swap.old ]; then		rm -f swap.old ;		fi
    if [ -f swap ]; then		mv -f swap swap.old ;		fi
fi

echo Creating an empty swapfile...
dd if=/dev/zero of=swap bs=$((1024 * 1024)) count=0 seek=$SWAPMEGS || exit 1	#Make a completely sparse file to start with; use "count=$SWAPMEGS", no seek if you'd rather not.

echo Making swap space in it...
# $SUDO not necessary, it appears.
mkswap swap || exit 1