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ARM Cross Compiler: GCC

This is a 32bit x86 application, so 64bit users will need to also install the 32bit libraries for their distribution. (ubuntu: ia32-libs)

tar xjf gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux.tar.bz2
export CC=`pwd`/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/bin/arm-linux-gnueabihf-
Unknown macro: {wiki}


Das U-Boot – the Universal Boot Loader

U-Boot Download:

Download U-Boot via git:

git clone git://
cd u-boot/
git checkout v2013.04 -b tmp

U-Boot Patches:


patch -p1 < 0001-omap3_beagle-uEnv.txt-bootz-n-fixes.patch

U-Boot Configure and Build:

make ARCH=arm CROSS_COMPILE=${CC} distclean
make ARCH=arm CROSS_COMPILE=${CC} omap3_beagle_config

Linux Kernel

Linux Build Script:

git clone git://
cd stable-kernel/

For Mainline v3.9.x

git checkout origin/v3.9.x -b tmp

Run Build Script:


The kernel zImage and modules will be under the deploy directory.

Debian 7.0.0 (Wheezy) Root File System

Default User: debian
Password: temppwd

Root User: root
Root Password: root

wget -c

verify the image with:

md5sum debian-7.0.0-minimal-armhf-2013-05-05.tar.xz
7378ac1f20ca4857ac1994e22fd20277  debian-7.0.0-minimal-armhf-2013-05-05.tar.xz

Extract Image:

tar xJf debian-7.0.0-minimal-armhf-2013-05-05.tar.xz

Ubuntu 13.04 (Raring) Root File System

Default User: ubuntu
Password: temppwd

wget -c

verify the image with:

md5sum debian-7.0.0-minimal-armhf-2013-05-05.tar.xz
952cf1f87c047653fb0f24818c8bfd26  ubuntu-13.04-minimal-armhf-2013-05-05.tar.xz

Extract Image:

tar xJf ubuntu-13.04-minimal-armhf-2013-05-05.tar.xz

Setup microSD/SD card

For these instruction, we are assuming: DISK=/dev/mmcblk0, "sudo fdisk -l" is useful for determining the device id..

export DISK=/dev/mmcblk0

Erase microSD/SD card:

sudo dd if=/dev/zero of=${DISK} bs=1024 count=1024
sudo parted --script ${DISK} mklabel msdos

Setup Boot Partition:

sudo fdisk ${DISK} << __EOF__


Set Boot Flag

sudo parted --script ${DISK} set 1 boot on

Format Boot Partition as vfat:

sudo mkfs.vfat -F 16 ${DISK}p1 -n boot
sudo mkfs.vfat -F 16 ${DISK}1 -n boot

Setup Root File System Partition:

sudo fdisk ${DISK} << __EOF__


Format rootfs as ext4:

sudo mkfs.ext4 ${DISK}p2 -L rootfs
sudo mkfs.ext4 ${DISK}2 -L rootfs

Mount Partitions:

Note: On most systems these partitions will be auto-mounted...

sudo mkdir -p /media/boot/
sudo mkdir -p /media/rootfs/

sudo mount ${DISK}p1 /media/boot/
sudo mount ${DISK}p2 /media/rootfs/


sudo mount ${DISK}1 /media/boot/
sudo mount ${DISK}2 /media/rootfs/

Install Bootloaders:

Copy MLO/u-boot.img to the boot partition

sudo cp -v ./u-boot/MLO /media/boot/
sudo cp -v ./u-boot/u-boot.img /media/boot/

U-Boot user enviroment variables: uEnv.txt

Create U-Boot "uEnv.txt" boot script: (nano uEnv.txt)

#Camera: Uncomment to enable:

#SPI: enable for userspace spi access on expansion header

#LSR COM6L Adapter Board
#First production run has unprogramed eeprom:

#LSR COM6L Adapter Board + TiWi5

#These are now set by default: uncomment/change if you need something else

#mmcroot=/dev/mmcblk0p2 ro
#mmcrootfstype=ext4 rootwait fixrtc

Copy uEnv.txt to the boot partition:

sudo cp -v ./uEnv.txt /media/boot/

Install Kernel and Root File System:

To help new users, since the kernel version can change on a daily basis. The kernel building scripts in this git repo will now give you a hint of what kernel version was built.

Script Complete [user@localhost:~$ export kernel_version=3.X.Y-Z]

Copy and Paste that "export kernel_version=3.X.Y-Z" exactly as shown in your own build/desktop environment:

export kernel_version=3.X.Y-Z

Copy Kernel zImage:

sudo cp -v ./stable-kernel/deploy/${kernel_version}.zImage /media/boot/zImage

Copy Kernel dtbs (Device Tree):

sudo mkdir -p /media/boot/dtbs/
sudo tar xofv ./stable-kernel/deploy/${kernel_version}-dtbs.tar.gz -C /media/boot/dtbs/

Copy Root File System:

sudo tar xfvp ./*-*-minimal-arm*-*/arm*-rootfs-*.tar -C /media/rootfs/

Copy Kernel modules:

sudo tar xfv ./stable-kernel/deploy/${kernel_version}-modules.tar.gz -C /media/rootfs/

Setup /etc/fstab:

sudo nano /media/rootfs/etc/fstab


/dev/mmcblk0p2   /           auto   errors=remount-ro   0   1
/dev/mmcblk0p1   /boot/uboot auto   defaults            0   0
Enable Networking:
sudo nano /media/rootfs/etc/network/interfaces


auto lo
iface lo inet loopback

auto eth0
iface eth0 inet dhcp
Enable Serial Login:


sudo nano /media/rootfs/etc/inittab

Add at end of file:

T2:23:respawn:/sbin/getty -L ttyO2 115200 vt102


sudo nano /media/rootfs/etc/init/serial.conf


start on stopped rc RUNLEVEL=[2345]
stop on runlevel [!2345]

exec /sbin/getty 115200 ttyO2

Remove microSD/SD card:

sudo umount /media/boot
sudo umount /media/rootfs


No Ethernet:

  1. Check Power (aka use 5Volt DC Plug): The USB bus allows up to 100mA on initial connection and up to a max of 500mA can be requested by the end USB device. On the xM this is not enough to power the whole device and on the xM C there is an actual hardware switch to disable the smsc95xx usb hub/ethernet when powered by OTG (to prevent out of power crashes seen on the xM A/B with when users powered by OTG).
  2. Check Ethernet Cable/Plug: Is the Ethernet Cable actually plugged into the Beagle and Router?
  3. Check Modules: The smsc95xx kernel driver is usually built as an external module, double check that your kernel modules for this device are installed.
    debian@devel:~$ find /lib/modules/`uname -r`/kernel/ | grep smsc95xx
    debian@devel:~$ lsmod | grep smsc95xx
    smsc95xx               11302  0
  4. Reload smsc95xx kernel module (Checked all the above and the LAN LED's are still off)
    sudo rmmod smsc95xx
    sudo modprobe smsc95xx
    sudo /etc/init.d/networking restart


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