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Installing Debian on a Raspberry Pi using a Mac OSX

This article explains how to install Debian on a Raspberry Pi. You will need to download the Debian distro prepared for the Pi. Get it from here:


TIP: Use a fast SD card. They come rated:

Class Minimum Speed
Class 2 2 MB p/s
Class 4 4 MB p/s
Class 6 6 MB p/s
Class 10 10 MB p/s

Next you will want to insert and unmount the SD card. It can’t be used while mounted. But you first need to know which “/dev/diskXXX” your SD card is found on. Try this:

Before inserting the SD card:

ls /dev/rdisk*

After inserting the SD card:

ls /dev/rdisk*

The difference between the above output will be the disk that you want to work with. Lets assume the SD card is found on “/dev/disk4”.

Unmount the disk as follows (assuming /dev/disk4″):

sudo diskutil unmount /dev/disk4s1

Now you want to “dd” the img file to the SD card:

sudo dd if=Downloads/2013-09-25-wheezy-raspbian.img of=/dev/rdisk4 bs=2m

In the above, you can see that i had downloaded the img file to my Downloads directory.

At this point you should be ready to put the SD card into the Pi and expect it to boot.