diff --git a/stack.sh b/stack.sh
index dc85abb..61c0f57 100755
--- a/stack.sh
+++ b/stack.sh
@@ -44,45 +44,6 @@ if [ ! -d $FILES ]; then
 fi
 
 
-# OpenStack is designed to be run as a regular user (Dashboard will fail to run
-# as root, since apache refused to startup serve content from root user).  If
-# stack.sh is run as root, it automatically creates a stack user with
-# sudo privileges and runs as that user.
-
-if [[ $EUID -eq 0 ]]; then
-    echo "You are running this script as root."
-    echo "In 10 seconds, we will create a user 'stack' and run as that user"
-    sleep 10 
-
-    # since this script runs as a normal user, we need to give that user
-    # ability to run sudo
-    apt-get update
-    apt-get install -y sudo
-
-    if ! getent passwd stack >/dev/null; then
-        echo "Creating a user called stack"
-        useradd -U -G sudo -s /bin/bash -m stack
-    fi
-
-    echo "Giving stack user passwordless sudo priviledges"
-    # natty uec images sudoers does not have a '#includedir'. add one.
-    grep -q "^#includedir.*/etc/sudoers.d" /etc/sudoers ||
-        echo "#includedir /etc/sudoers.d" >> /etc/sudoers
-    ( umask 226 && echo "stack ALL=(ALL) NOPASSWD:ALL" \
-        > /etc/sudoers.d/50_stack_sh )
-
-    echo "Copying files to stack user"
-    STACK_DIR="/home/stack/${PWD##*/}"
-    cp -r -f "$PWD" "$STACK_DIR"
-    chown -R stack "$STACK_DIR"
-    if [[ "$SHELL_AFTER_RUN" != "no" ]]; then
-        exec su -c "set -e; cd $STACK_DIR; bash stack.sh; bash" stack
-    else
-        exec su -c "set -e; cd $STACK_DIR; bash stack.sh" stack
-    fi
-    exit 1
-fi
-
 
 # Settings
 # ========
@@ -117,6 +78,45 @@ source ./stackrc
 # Destination path for installation ``DEST``
 DEST=${DEST:-/opt/stack}
 
+# OpenStack is designed to be run as a regular user (Dashboard will fail to run
+# as root, since apache refused to startup serve content from root user).  If
+# stack.sh is run as root, it automatically creates a stack user with
+# sudo privileges and runs as that user.
+
+if [[ $EUID -eq 0 ]]; then
+    echo "You are running this script as root."
+    echo "In 10 seconds, we will create a user 'stack' and run as that user"
+    sleep 10 
+
+    # since this script runs as a normal user, we need to give that user
+    # ability to run sudo
+    apt-get update
+    apt-get install -y sudo
+
+    if ! getent passwd stack >/dev/null; then
+        echo "Creating a user called stack"
+        useradd -U -G sudo -s /bin/bash -d $DEST -m stack
+    fi
+
+    echo "Giving stack user passwordless sudo priviledges"
+    # natty uec images sudoers does not have a '#includedir'. add one.
+    grep -q "^#includedir.*/etc/sudoers.d" /etc/sudoers ||
+        echo "#includedir /etc/sudoers.d" >> /etc/sudoers
+    ( umask 226 && echo "stack ALL=(ALL) NOPASSWD:ALL" \
+        > /etc/sudoers.d/50_stack_sh )
+
+    echo "Copying files to stack user"
+    STACK_DIR="$DEST/${PWD##*/}"
+    cp -r -f "$PWD" "$STACK_DIR"
+    chown -R stack "$STACK_DIR"
+    if [[ "$SHELL_AFTER_RUN" != "no" ]]; then
+        exec su -c "set -e; cd $STACK_DIR; bash stack.sh; bash" stack
+    else
+        exec su -c "set -e; cd $STACK_DIR; bash stack.sh" stack
+    fi
+    exit 1
+fi
+
 # Set the destination directories for openstack projects
 NOVA_DIR=$DEST/nova
 DASH_DIR=$DEST/dash
diff --git a/tools/build_ramdisk.sh b/tools/build_ramdisk.sh
index 63d37a9..decdeb2 100755
--- a/tools/build_ramdisk.sh
+++ b/tools/build_ramdisk.sh
@@ -18,6 +18,9 @@ CWD=`pwd`
 
 DEST=${DEST:-/opt/stack}
 
+# Param string to pass to stack.sh.  Like "EC2_DMZ_HOST=192.168.1.1 MYSQL_USER=nova"
+STACKSH_PARAMS=${STACKSH_PARAMS:-}
+
 # Option to use the version of devstack on which we are currently working
 USE_CURRENT_DEVSTACK=${USE_CURRENT_DEVSTACK:-1}
 
@@ -42,7 +45,7 @@ if [ ! -d $CHROOTCACHE/natty-dev ]; then
     chroot $CHROOTCACHE/natty-dev groupadd libvirtd
     chroot $CHROOTCACHE/natty-dev useradd stack -s /bin/bash -d $DEST -G libvirtd
     mkdir -p $CHROOTCACHE/natty-dev/$DEST
-    chown stack $CHROOTCACHE/natty-dev/$DEST
+    chroot $CHROOTCACHE/natty-dev chown stack $DEST
 
     # a simple password - pass
     echo stack:pass | chroot $CHROOTCACHE/natty-dev chpasswd
@@ -112,6 +115,34 @@ auto eth0
 iface eth0 inet dhcp
 EOF
 
+# Set hostname
+echo "ramstack" >$CHROOTCACHE/natty-stack/etc/hostname
+echo "127.0.0.1		localhost	ramstack" >$CHROOTCACHE/natty-stack/etc/hosts
+
+# Configure the runner
+RUN_SH=$CHROOTCACHE/natty-stack/$DEST/run.sh
+cat > $RUN_SH <<EOF
+#!/usr/bin/env bash
+
+# Get IP range
+set \`ip addr show dev eth0 | grep inet\`
+PREFIX=\`echo \$2 | cut -d. -f1,2,3\`
+export FLOATING_RANGE="\$PREFIX.224/27"
+
+# Kill any existing screens
+killall screen
+
+# Run stack.sh
+cd $DEST/devstack && \$STACKSH_PARAMS ./stack.sh > $DEST/run.sh.log
+echo >> $DEST/run.sh.log
+echo >> $DEST/run.sh.log
+echo "All done! Time to start clicking." >> $DEST/run.sh.log
+EOF
+
+# Make the run.sh executable
+chmod 755 $RUN_SH
+chroot $CHROOTCACHE/natty-stack chown stack $DEST/run.sh
+
 # build a new image
 BASE=$CHROOTCACHE/build.$$
 IMG=$BASE.img