Flushing the Operating System

The Raspberry PI nodes are provisioned using Raspbian Buster. A light weight version of Raspbian Buster.

Download and unzip the iso image from the link above
Locate the SD card
```
diskutil list
```
Unmount the disk
```
diskutil unmountDisk /dev/disk2
```

dd the image into the disk

sudo dd if=<path-to-image>/raspbian.img of=/dev/rdisk2 bs=1m

Enable ssh
```
cd /Volumes/boot
touch ssh
```
Unmount and remove card