4. Prepare SD card

Repartitioning the SD card

Resizing the root partition

By default, when the Pi boots for the first time, it claims all space there is on the SD card using /usr/lib/raspi-config/init_resize.sh which is run by the init= instruction in /boot/cmdline.txt, but this instruction was removed from cmdline.txt as stated in page 2 of this manual, because an extra partition has to be created. To do this, perform the following steps:

sudo sfdisk -d /dev/mmcblk0 > /tmp/partitions.txt
sudo nano /tmp/partitions.txt
sudo sed -i "/mmcblk0p2.*size/s/size=.*,/size=     8388608,/g" /tmp/partitions.txt
sudo sfdisk -n /dev/mmcblk0 < /tmp/partitions.txt
sudo partprobe /dev/mmcblk0
sudo resize2fs /dev/mmcblk0p2

This will resize the root file system to 4GB. Check with df -h

Install necessary software

sudo apt-get update sudo apt-get install ntfs-3g

Add an NTFS partition

Start fdisk interactive: sudo fdisk /dev/mmcblk0

1. Print the existing partition table with p
2. Create a new partition with n
3. Make this an primary partition by entering p
4. Accept the default partition number (3)
5. Enter the first sector number. This is the number of the End sector of /dev/mmcblk0p2 increased by 1
6. Accept the default last sector number. This will fill up your SD card completely
7. Change the partition type by entering t
8. Choose partition 3 to alter
9. Type 7 to mak this a NTFS partition
10. Enter w to write the partition information to disk
11. Update the kernel tables: sudo partprobe /dev/mmcblk0

Format the newly created partition:

sudo mkntfs -Q -L CD-berry /dev/mmcblk0p3

Mount and check the partition:

sudo mount /dev/mmcblk0p3 /mnt
sudo df -h
sudo umount /mnt

On a 16GB SD card, you will see a NTFS partition with a size of about 11GB