Install Tomato Firmware via TFTP from *NIX system

install_tomato.sh

#!/bin/bash

echo "==================================================================="
echo "This bash script will upload tomato.trx in the current directory to"
echo "192.168.11.1 during the router's bootup."
echo 
echo "* Set your ethernet card's settings to:"
echo "     IP:      192.168.11.2"
echo "     Mask:    255.255.255.0"
echo "     Gateway: 192.168.11.1."
echo
echo "* Unplug the router's power cable."
echo "     Press Ctrl+C to abort or any other key to continue..."

read

echo "* Re-plug the router's power cable."
echo "==================================================================="
echo
echo "Waiting for the router... Press Ctrl+C to abort."

ROUTER_IP='192.168.11.1'
ret=""

while [ -z "$ret" ]; do
  ret=$( ping -c 1 -W 50 $ROUTER_IP | grep ttl )
  echo -n '.'
done
echo

if [ -n "$ret" ]; then
  echo 'Uploading firmware via tftp...'
  echo 'put tomato.trx' | tftp $ROUTER_IP
  echo
  echo "==================================================================="
  echo "* WAIT for about 2 minutes while the firmware is being flashed."
  echo
  echo "* Reset your ethernet card's settings back to DHCP."
  echo 
  echo "* The default router address will be at 192.168.1.1."
else
  echo 'Upload failed!'
fi