Add script to set up pi sd cards

tools/pi_sd_prep.sh

@@ -0,0 +1,75 @@
+#!/bin/bash
+
+# cleanup
+# trap ctrl-c and call ctrl_c()
+trap cleanup INT
+
+function cleanup() {
+  rm -f /tmp/noobs.zip
+  umount -f /tmp/sdcard.$$ >/dev/null 2>&1
+  echo "Aborted."
+  exit 1
+}
+
+if [[ $EUID -ne 0 ]]; then
+  echo "ERROR: this script must be run as root (i.e. using \`sudo'.)"
+  exit 1
+fi
+
+PATH=${PATH}:/sbin:/usr/sbin
+
+if [ -z "$1" ]; then
+  echo "USAGE: pi_sd_prep.sh device"
+  exit 1
+fi
+
+if [ ! -b "$1" ]; then
+  echo "ERROR: no such device: $1"
+  exit 1
+fi
+
+DEV="$1"
+
+echo "Unmoounting all partitions on $DEV:"
+PARTS="`df | grep ^$DEV | awk '{ print $1 }'`"
+if [ ! -z "$PARTS" ]; then
+  for PART in $PARTS; do
+    echo "...$PART"
+    umount "$PART"
+  done
+fi
+echo "...done"
+
+echo "Preparing partition table on $DEV:"
+echo -e "d\n1\nd\n2\nd\n3\nd\n4\nd\n5\nd\n6\nn\np\n1\n\n\nt\nb\na\n1\nw\nq\n" | fdisk $DEV >/dev/null
+echo "...done"
+
+echo "Formatting partition on $DEV:"
+mkfs.vfat ${DEV}1
+echo "...done"
+
+echo "Mounting partition on $DEV:"
+mkdir -p /tmp/sdcard.$$
+mount -t vfat "${DEV}1" /tmp/sdcard.$$
+echo "...done"
+
+echo "Downloading latest NOOBS:"
+curl -#Lo /tmp/noobs.zip http://downloads.raspberrypi.org/NOOBS_latest
+echo "...done"
+
+echo "Unzipping to SD card..."
+unzip -q -d /tmp/sdcard.$$ /tmp/noobs.zip
+echo "...done"
+
+# get NOOBS version info
+NOOBS_VERSION=`grep -i "^NOOBS Version:" /tmp/sdcard.$$/BUILD-DATA | cut -d':' -f2  | tr -d '[[:space:]]'`
+BUILD_DATE=`grep -i "^Build-date:" /tmp/sdcard.$$/BUILD-DATA | cut -d':' -f2  | tr -d '[[:space:]]'`
+
+echo "unmounting SD card..."
+sync;sync;sync
+umount /tmp/sdcard.$$
+echo "...done"
+
+rm -f /tmp/noobs.zip
+rmdir /tmp/sdcard.$$
+echo "NOOBS $NOOBS_VERSION ($BUILD_DATE) has been installed and is ready to be booted."