source: scripts/start-qemu.bash @ 2990

#!/bin/bash
# Bash script to start Qemu emulator to test ISOs
# Coyright 2005-2008 Alan Baghumian / GNU/GPL

usage()
{
  echo "Usage: start-qemu.sh <32|64> <iso-name> <boot>"
  exit
}

if [ -z "${1}" -o -z "${2}" -o -z "${3}" ]; then
   usage
fi

if [ "${1}" != "32" -a "${1}" != "64" ]; then
   echo "Invalid arch."
   exit
fi

mem_size="290"
eth_iface="wlan0"
qemuhdd="qemu-hdd"

# load needed kernel modules
modprobe kqemu major=0 &>/dev/null
modprobe tun &>/dev/null

# enable ip forwarding and masquerading
echo "1" > /proc/sys/net/ipv4/ip_forward
iptables -t nat -A POSTROUTING -o ${eth_iface} -j MASQUERADE

umount /dev/shm &> /dev/null
mount -t tmpfs -o size=${mem_size} none /dev/shm &>/dev/null

#qemu-system-x86_64
if [ "${1}" == "32" ]; then
   qemu -cdrom ${2} -m 280 -boot ${3} -hda ${qemuhdd} -usb -net tap -net nic #-no-kqemu
else
   qemu-system-x86_64 -cdrom ${2} -m 280 -boot ${3} -hda ${qemuhdd} -usb -net tap -net nic -no-kqemu
fi