This article illustrates how to install on a Ubuntu Linux PC the complete toolchain to cross compile the Linux Kernel, the Linux device drivers, the Linux applications, C and C++ applications and the boot loader AT91Bootstrap and derivates (CORE9G25Boot, AriaBoot).

I tested on a PC with Linux Ubuntu Version 13.04. If you are running Ubuntu 10.04 read this post.

Add a new Repository

Using the root privileges edit the /etc/apt/sources.list file on your Linux PC and add the following line at the end of the file:

# -- Emdebian cross toolchains
deb http://www.emdebian.org/debian/ stable main

Now update the index of packages available on this new repository:

$ sudo apt-get update
...

Install the Cross Compilers, utilities, etc.

Install the GCC, G++ cross compilers and support programs by typing:

$ sudo apt-get install emdebian-archive-keyring
$ sudo apt-get install libc6-armel-cross libc6-dev-armel-cross
$ sudo apt-get install binutils-arm-linux-gnueabi
$ sudo apt-get install gcc-arm-linux-gnueabi
$ sudo apt-get install g++-arm-linux-gnueabi
$ sudo apt-get install uboot-mkimage
$ sudo apt-get install libncurses5-dev

Now you are ready to cross-compile on your PC all the source available for the CORE9G25 Boards based on ATMEL AT91SAM CPUs.