115c115,116
< 	echo "\t\t[-t install boot image path] client_name platform_group"
---
> 	echo "\t\t[-t install boot image path]"
> 	echo "\t\t[-r root server:path] client_name platform_group"
1486a1488,1492
> 	if [ -z "${ROOT_SERVER}" ]; then
> 		ROOT_SERVER=${SUBNET_NAME}
> 		ROOT_PATH=${ROOT}
> 	fi
> 
1488c1494
< 	BOOTPARAMS="${BOOTPARAMS} root=${SUBNET_NAME}:${ROOT}"
---
> 	BOOTPARAMS="${BOOTPARAMS} root=${ROOT_SERVER}:${ROOT_PATH}"
1707a1714,1722
>     -r) ROOT_SERVER=`expr $2 : '\(.*\):.*'`
> 	ROOT_PATH=`expr $2 : '.*:\(.*\)'`
> 	if [ ! "$ROOT_SERVER" ]; then
> 	    usage ;
> 	fi
> 	if [ ! "$ROOT_PATH" ]; then
> 	    usage ;
> 	fi
>   	shift 2;;