UDOO Installing Debian With Debootstrap

Prerequisites

 * A SD card for the resulting system (1GB or larger)
 * official UDOO Kernel and Modules for your model http://www.udoo.org/downloads/
 * U-boot for your model http://www.udoo.org/downloads/
 * Debian or Linux OS for creating the install

(Available through apt-get)

 * binfmt-support
 * qemu-user-static
 * debootstrap

I'm going to use /dev/sdb to represent the SD card and ~/deb as the directory I'm building Debian in.

You can also use a SATA disk instead of an SD card, if using a SATA disk, it is even possible to build the system entirely on the UDOO.

Also, with SATA be sure to setup U-Boot

Substitute these with your own paths as needed.

First, you need to partition the SD card. Leave room before the primary partition to place uboot. Uboot needs to start at offset 1024B.

Here is an example SD card layout, as displayed by fdisk: Device Boot      Start         End      Blocks   Id  System /dev/sdb1   16065    13414274     6699105   83  Linux

(units: 512B sectors)

You can format and mount the Linux partition with: # mkfs.ext3 /dev/sdb1 # mount /dev/sdb1 /mnt You could also mount your device to ~/dev is you want to build directly on a SD card or SATA disk.

Flash U-Boot by running the following command: (This is required to be on the SD even if using SATA) (Replace u-boot-q.bin with the name of the U-Boot file you downloaded) dd if=u-boot-q.bin of=/dev/sdb bs=512 seek=2 skip=2 NOTE: We are using /dev/sdb here, NOT sdb1, Also, be sure sdb is the sd card

=Bootstrapping Debian=

First Stage
First, lets create our working directory

# mkdir ~/dev Then we can run the first stage of installing Debian

# debootstrap --foreign --arch=armhf wheezy ~/deb

Once that completes we are almost ready for the second stage, but before we do that, we must copy qemu's arm binary to the new distro. This will allow us to chroot into the new system.

# cp /usr/bin/qemu-arm-static ~/dev/usr/bin/

Second Stage
Now, we install the second stage

# chroot ~/dev /debootstrap/debootstrap --second-stage

This will chroot into the new system and complete the install. You can optionally remove qemu-arm-static from the new install at this point.

Now its time to install the kernel

# cp path/to/uImage ~/dev/boot # cd ~/dev # tar xzf path/to/modules.tar.gz

Note: replace path/to with the path where you placed the kernel and modules. If using SATA, be sure to place uImage on the SD card also. Otherwise you will not be able to boot.

=Post install changes=

We now have a working Debian system that will boot, however, we will not have networking.

chroot into the system

# chroot ~/deb

edit etc/network/interfaces to add the eth0 interface

# nano /etc/network/interfaces auto eth0 iface eth0 inet dhcp

also, edit the bottom of /etc/inittab if you want a serial terminal

T1:23:respawn:/sbin/getty -L ttymxc1 115200 vt100

You may also apt-get any additional packages, once on an SD card, write performance is usually slower.

Packages you may want

openssh-server for SSH firmware-ralink for the wifi wpasupplicant for wifi connections lxde or xfce for a desktop enviroment tightvncserver for remote desktop git because who DOESN'T download from git? bluetooth for bluetooth support

Once done, exit the chroot.

= Transfer to SD card = If you chose to build the system directly on SD or SATA you can skip this step. Now we can copy the new system to your sd card or SATA disk.

# cd ~/dev/ # cp -rp * /mnt/

Once complete its now time to boot!

=Boot!=

Now the system is ready for booting! You should already have all the drivers you need for the hardware, some like bluetooth, may require additional software.

This guide has been adapted from the guide over at the Freescale community.

= Binary Tarball = A binary tarball is available at http://down.ags131.us/udoo_debian_wheezy.tgz just download it and tar xzf udoo_debian_wheezy.tgz

inside your sdcard, SATA disk or staging directory rather than going through debootstrap

user is root password is debian