image raspi

Make_RasPi_SDC.sh

# first, download image to somewhere
# make a note of the location
# i am going to use:
# ~/Downloads/2017-04-10-raspbian-jessie-lite.img
read -n 1 -s -p "Download the image and press any key to continue..."

# i sudo bash first
sudo bash

# let's get the current disks
diskutil list >~/dl.1

# let's get the new disk
read -n 1 -s -p "Insert your SD card and press any key to continue..."
diskutil list >~/dl.2
diff ~/dl.1 ~/dl.2
rm ~/dl.1 ~/dl.2

# diff will show something like this:
# 14a15,20
# > /dev/disk2 (internal, physical):
# >    #:                       TYPE NAME                    SIZE       IDENTIFIER
# >    0:     FDisk_partition_scheme                        *31.9 GB    disk2
# >    1:             Windows_FAT_32 boot                    43.0 MB    disk2s1
# >    2:                      Linux                         31.9 GB    disk2s2
# > 
# make a note of the new disk. in the example above it is "2"
read -n 1 -s -p "Make a note of the disk# output from diff and press any key to continue..."

# I am using 2 below, if different change all disk numbers below
# also update img file path if it is different
# Below should be commented out so will need to get this info
: '
  diskutil unmountDisk /dev/disk2
  dd bs=1m if=~/Downloads/2017-04-10-raspbian-jessie-lite.img of=/dev/rdisk2
  touch /volumes/boot/ssh
  diskutil eject /dev/disk2
  '
#assumes running script in current dir
tail -f ${0}