Writing an SD card from OS X

Step 1

You can figure out the name of your blank SD Card by first inserting the disk and running this command.

df -h

This will give you a path to the SD card. In my example (below) 2 means disk and s1 means partition. Only focus on the disk.

Example of df -h

Once you figure out the disk number of your card, unmount it.

Step 2

Unmount the SD Card

sudo diskutil umount /path/to/your/dev/<Disk>

Disk-unmount-exampl

Copy over the DiskImage.img to the SD Card. Take note that we're now using rdisk.

sudo dd bs=1m if=/path/to/your/disk/image.img of=/dev/rdisk<Disk Number>