Script for setting network location and IP in a mixed static/dhcp environment so that imaging could take place.

network_location_discovery.sh

#/bin/sh

function tryping {
	ping -t 5 x.x.x.x > /dev/null 2>&1
	if [ $? == 0 ]; then exit 0; fi
	}

rm -rf /Library/Preferences/SystemConfiguration/NetworkInterfaces.plist
rm -rf /Library/Preferences/SystemConfiguration/preferences.*
networksetup -createlocation setup populate
networksetup -switchtolocation setup

# Turn off Wi-Fi

networksetup -setnetworkserviceenabled Wi-Fi off

# Find our Ethernet connection

myeth=$(networksetup -listallnetworkservices | awk '/Ethernet/ { print $0 }')

# Try the different setups

count="0"

while [ $count -lt 5 ]; do
	networksetup -setmanual "$myeth" x.x.x.x x.x.x.x x.x.x.x
	networksetup -setdnsservers "$myeth" x.x.x.x x.x.x.x
	networksetup -setsearchdomains "$myeth" some.domain some.otherdomain
	tryping
	networksetup -setdhcp "$myeth"
	tryping
	count=$[$count+1]
done

osascript -e 'tell application "Finder" to display dialog "Unable to set network! Imaging cannot take place!"'
exit 1