This page describes to how deploy the Ubuntu OS and Debian on a uSomIQ COM.
These instructions were adapted from the ones provided by Robert Nelson available here:
http://www.eewiki.net/display/linuxonarm/BeagleBone
wget -c https://launchpad.net/linaro-toolchain-binaries/trunk/2013.07/+download/gcc-linaro-arm-linux-gnueabihf-4.8-2013.07-1_linux.tar.xz tar xJf gcc-linaro-arm-linux-gnueabihf-4.8-2013.07-1_linux.tar.xz export CC=`pwd`/gcc-linaro-arm-linux-gnueabihf-4.8-2013.07-1_linux/bin/arm-linux-gnueabihf-
Das U-Boot – the Universal Boot Loader [http://www.denx.de/wiki/U-Boot]
Download U-Boot via git:
git clone git://git.denx.de/u-boot.git cd u-boot/ git checkout v2013.07 -b tmp
wget http://www.mentorel.com/downloads/usomiq/patches/u-boot-2013.07-usomiq.patch patch -p1 < u-boot-2013.07-usomiq.patch
make ARCH=arm CROSS_COMPILE=${CC} distclean
make ARCH=arm CROSS_COMPILE=${CC} am335x_evm_config
make ARCH=arm CROSS_COMPILE=${CC}
git clone git://github.com/RobertCNelson/linux-dev.git cd linux-dev/ git checkout origin/am33x-v3.2 -b tmp
Download a patch to enable uSomIQ support in kernel
wget http://www.mentorel.com/downloads/usomiq/patches/add-usomiq-rcn-v3.2.patch patch -p1 < add-usomiq-rcn-v3.2.patch
Run Build Script:
./build_kernel.sh
The kernel zImage and modules will be under the deploy directory.
You can find the prebuilt binaries here:
http://www.mentorel.com/downloads/usomiq/boot/beaglebone-compatible/
This file system is very small and can be installed to the NAND flash on uSomIQ. It is not that small like Angstrom minimal distribution (~20M), but will require around 75M on the flash. However it is a real Debian system with apt-get utility installed.
Default User: debian
Password: temppwd
Root User: root
Root Password: root
wget -c https://rcn-ee.net/deb/minfs/wheezy/debian-7.5-minimal-armhf-2014-07-07.tar.xz
verify the image with:
md5sum debian-7.5-minimal-armhf-2014-07-07.tar.xz cae9e0cfac14fd6aa19d4c17357aecc8 debian-7.5-minimal-armhf-2014-07-07.tar.xz
Extract Image:
tar xf debian-7.5-minimal-armhf-2014-07-07.tar.xz
Now you have a directory with the archived (tar) file system itself and a file with user names/passwords.
Default User: ubuntu
Password: temppwd
wget -c https://rcn-ee.net/deb/minfs/trusty/ubuntu-14.04-minimal-armhf-2014-07-07.tar.xz
verify the image with:
md5sum ubuntu-14.04-minimal-armhf-2014-07-07.tar.xz c30fb91012701cdbfa00bb6c86868d0a ubuntu-14.04-minimal-armhf-2014-07-07.tar.xz
Extract Image:
tar xJf ubuntu-14.04-minimal-armhf-2014-07-07.tar.xz
Now you have a directory with the archived (tar) file system itself and a file with user names/passwords.
A Root File System around 64Mb in size, for flash applications.
Debian 7 (small flash)
| User | Password |
|---|---|
| debian | temppwd |
| root | root |
Download:
wget -c https://rcn-ee.net/deb/barefs/wheezy/debian-7.5-bare-armhf-2014-07-07.tar.xz
Verify:
md5sum debian-7.5-bare-armhf-2014-07-07.tar.xz a5f0e75e5ad16bb110d4291f54ed6cb9 debian-7.5-bare-armhf-2014-07-07.tar.xz
Extract:
tar xJf debian-7.5-bare-armhf-2014-07-07.tar.xz
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 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__
n
p
1
+64M
t
e
p
w
__EOF__
Set Boot Flag
sudo parted --script ${DISK} set 1 boot on
Format Boot Partition as vfat:
DISK=/dev/mmcblk0
sudo mkfs.vfat -F 16 ${DISK}p1 -n boot
(or)
DISK=/dev/sdX
sudo mkfs.vfat -F 16 ${DISK}1 -n boot
Setup Root File System Partition:
sudo fdisk ${DISK} << __EOF__
n
p
2
w
__EOF__
Format rootfs as ext4:
DISK=/dev/mmcblk0
sudo mkfs.ext4 ${DISK}p2 -L rootfs
(or)
DISK=/dev/sdX
sudo mkfs.ext4 ${DISK}2 -L rootfs
*Note: On most systems these partitions will be auto-mounted…*
sudo mkdir -p /media/boot/
sudo mkdir -p /media/rootfs/
DISK=/dev/mmcblk0
sudo mount ${DISK}p1 /media/boot/
sudo mount ${DISK}p2 /media/rootfs/
(or)
DISK=/dev/sdX
sudo mount ${DISK}1 /media/boot/
sudo mount ${DISK}2 /media/rootfs/
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/
Requires: u-boot v2013.04
Create “uEnv.txt” boot script: (nano uEnv.txt)
#optargs=
mmcroot=/dev/mmcblk0p2 ro
mmcrootfstype=ext4 rootwait fixrtc
#To boot old v3.2.x based kernel enable: (BeagleBone/uSomIQ only)
uenvcmd=run loaduimage; run mmc_classic_boot
#To boot new v3.8.x based device tree:
#uenvcmd=run loaduimage; run loadfdt; run mmcargs; bootz ${loadaddr} - ${fdtaddr}
Copy uEnv.txt to the boot partition:
sudo cp -v ./uEnv.txt /media/boot/
To help new users, since the kernel version can change on a daily basis. The kernel building scripts in this git repo will now give you a hint of what kernel version was built.
----------------------------- Script Complete eewiki.net: [user@localhost:~$ 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 ./linux-dev/deploy/${kernel_version}.zImage /media/boot/zImage
Copy Root File System:
sudo tar xfvp ./*-*-minimal-arm*-*/arm*-rootfs-*.tar -C /media/rootfs/
Copy Kernel modules:
sudo tar xfv ./linux-dev/deploy/${kernel_version}-modules.tar.gz -C /media/rootfs/
Setup /etc/fstab:
sudo nano /media/rootfs/etc/fstab
Add:
/dev/mmcblk0p2 / auto errors=remount-ro 0 1 /dev/mmcblk0p1 /boot/uboot auto defaults 0 0
sudo nano /media/rootfs/etc/network/interfaces
Add:
auto lo iface lo inet loopback auto eth0 iface eth0 inet dhcp
Debian:
sudo nano /media/rootfs/etc/inittab
Add at end of file:
T0:23:respawn:/sbin/getty -L ttyO0 115200 vt102
Ubuntu:
sudo nano /media/rootfs/etc/init/serial.conf
Add:
start on stopped rc RUNLEVEL=[2345] stop on runlevel [!2345] respawn exec /sbin/getty 115200 ttyO0
Remove microSD card:
sync sudo umount /media/boot sudo umount /media/rootfs
Here you will learn how install Debian to a UBIFS partition on a uSomIQ system on module.
1) Install Ubuntu or Debian to a SD card as described in the previous step
2) Download and extract a small Debian file system as described root_file_system_for_nand
You will have an archive debian-7.1-bare-armhf-2013-08-25.tar after extracting. Place this archive to the SD card with OS installed in the previous step.
3) Boot the board with the SD card to u-boot and issue the following commands:
nand erase.chip mmc rescan fatload mmc 0 0x81600000 MLO nand write 0x81600000 0 20000 nand write 0x81600000 20000 20000 nand write 0x81600000 40000 20000
Load the u-boot image u-boot.img to NAND. Note that we use the actual size of the u-boot.img file in Hex. If your file has a different size then update this number
fatload mmc 0 0x81600000 u-boot.img nand write 0x81600000 80000 57d74 # <- this is the actual size of the u-boot.img file in Hex
Load the kernel image zImage to NAND. Note that we use the actual size of the zImage file in Hex. If your file has a different size then update this number
run loaduimage
nand write ${loadaddr} 280000 2B08f8 # <- this is the actual size of the zImage file in Hex
4) Boot farther to OS
5) Prepare a UBIFS partition
For more information visit: http://processors.wiki.ti.com/index.php/UBIFS_Support
Preparing NAND partition for modules with 256MB
ubiformat /dev/mtd7 -s 2048 -O 2048 ubiattach /dev/ubi_ctrl -m 7 -O 2048 ubimkvol /dev/ubi0 -s 235MiB -N rootfs mount -t ubifs ubi0:rootfs /mnt
Preparing NAND partition for modules with 512MB
ubiformat /dev/mtd7 -s 2048 -O 2048 ubiattach /dev/ubi_ctrl -m 7 -O 2048 ubimkvol /dev/ubi0 -s 450MiB -N rootfs mount -t ubifs ubi0:rootfs /mnt
6) Install the file system to the UBIFS-partiotion
cd /mnt tar xf <path to image>/debian-7.1-bare-armhf-2013-08-25.tar sync
7) Enable the Serial login
Edit the file /mnt/etc/inittab as described for the SD card installation.
8) Enable Network
Edit the file /mnt/etc/network/interfaces as described for the SD card installation.
9) Remove the SD card and reboot the board
Turn on Backlight:
i2cset -f -y 1 0x24 0x07 0x09 i2cset -f -y 1 0x24 0x08 0x60
Add to /etc/modules:
fbcon ti_tscadc