diff --git a/tools/bb_sd_prep.sh b/tools/bb_sd_prep.sh
new file mode 100755
index 0000000..f2f7018
--- /dev/null
+++ b/tools/bb_sd_prep.sh
@@ -0,0 +1,87 @@
+#!/bin/bash
+
+# cleanup
+# trap ctrl-c and call ctrl_c()
+trap cleanup INT
+
+function cleanup() {
+  umount -f /tmp/sdcard.boot.$$ >/dev/null 2>&1
+  umount -f /tmp/sdcard.root.$$ >/dev/null 2>&1
+  echo "Aborted."
+  exit 1
+}
+
+if [[ $EUID -ne 0 ]]; then
+  echo "ERROR: this script must be run as root (i.e. using \`sudo'.)"
+  exit 1
+fi
+
+PATH=${PATH}:/sbin:/usr/sbin
+DEV="$1"
+IMGDIR="$2"
+if [ -z "$IMGDIR" ]; then
+  IMGDIR=/home/dburr/devel/poky/build/tmp/deploy/images/beaglebone
+fi
+
+if [ -z "$DEV" -o -z "$IMGDIR" ]; then
+  echo "USAGE: bb_sd_prep.sh device build-dir"
+  exit 1
+fi
+
+if [ ! -b "$DEV" ]; then
+  echo "ERROR: no such device: $DEV"
+  exit 1
+fi
+
+if [ ! -d "$IMGDIR" -o ! -f "$IMGDIR/MLO-beaglebone" ]; then
+  echo "ERROR: $IMGDIR does not appear to be a build directory"
+  exit 1
+fi
+
+pushd "$IMGDIR" >/dev/null 2>&1
+
+echo "Unmoounting all partitions on $DEV:"
+PARTS="`df | grep ^$DEV | awk '{ print $1 }'`"
+if [ ! -z "$PARTS" ]; then
+  for PART in $PARTS; do
+    echo "...$PART"
+    umount "$PART"
+  done
+fi
+echo "...done"
+
+echo "Preparing partition table on $DEV:"
+dd if=/dev/zero of=$DEV bs=512 count=10 >/dev/null 2>&1
+echo -e "n\np\n1\n\n4095\nn\np\n2\n\n\nt\n1\ne\na\n1\nw\n" | fdisk $DEV >/dev/null 2>&1
+echo "...done"
+
+echo "Formatting partition on $DEV:"
+mkfs.vfat -F 16 -n "boot" ${DEV}1
+mkfs.ext2 -j -L "root" ${DEV}2
+echo "...done"
+
+echo "Mounting partition on $DEV:"
+mkdir -p /tmp/sdcard.boot.$$
+mkdir -p /tmp/sdcard.root.$$
+mount -t vfat "${DEV}1" /tmp/sdcard.boot.$$
+mount -t ext4 "${DEV}2" /tmp/sdcard.root.$$
+echo "...done"
+
+echo "Copying bootloader..."
+cp MLO-beaglebone /mnt/sdcard.boot.$$/MLO
+cp u-boot-beaglebone.img /mnt/sdcard.boot.$$/u-boot.img
+echo "...done"
+
+echo "Creating root filesystem..."
+tar x -C /tmp/sdcard.root.$$ -f core-image-*-beaglebone.tar.bz2
+echo "...done"
+
+echo "unmounting SD card..."
+sync;sync;sync
+umount /tmp/sdcard.boot.$$
+umount /tmp/sdcard.root.$$
+echo "...done"
+
+rmdir /tmp/sdcard.boot.$$
+rmdir /tmp/sdcard.root.$$
+echo "Yocto has been installed and is ready to be booted."