How to format an SD Card:
1. Insert an SD card that is 8GB or greater in size into your computer.
2. Format the SD card using the platform-specific instructions below:
a. Windows (32GB cards and under)
i. Download the SD Association's Formatting Tool from https://www.sdcard.org/downloads/formatter_4/eula_windows/
ii. Install and run the Formatting Tool on your machine
iii. Set "FORMAT SIZE ADJUSTMENT" option to "ON" in the "Options" menu
iv. Check that the SD card you inserted matches the one selected by the Tool
v. Click the "Format" button
b. Mac (32GB cards and under)
i. Download the SD Association's Formatting Tool from https://www.sdcard.org/downloads/formatter_4/eula_mac/
ii. Install and run the Formatting Tool on your machine
iii. Select "Overwrite Format"
iv. Check that the SD card you inserted matches the one selected by the Tool
v. Click the "Format" button
c. Linux
i. We recommend using gparted (or the command line version parted)
ii. Format the entire disk as FAT32
d. Cards over 32GB
i. Follow the instructions on https://www.raspberrypi.org/documentation/installation/sdxc_formatting.md
