Legacy method

First installation boot

First system loading will cause that the system partition will be expanded to the size of memory card. That process cannot be interrupted. You need to wait till the moment when one of LEDs will blink.

Informacja

If you have display with HDMI input and keyboard or serial port in your PC, you are able to follow instructions which will be displayed on console (official method). If you do not have it, it is able to finish system installation as per this instruction.

  • Turn on PandaBoard.
  • Wait till the moment when on of LEDs will blink.
  • Turn off PandaBoard.
  • Pull out memory card from PandaBoard card reader.
  • Put memory card in computer card reader.

Prepare system to configuration

  • Mount system partition (second partition).
  • Change file which has network settings, which is located on system partition - path /etc/network/interfaces.
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
    address 192.168.2.50
    netmask 255.255.255.0
    gateway 192.168.2.1
    dns-nameservers 8.8.8.8

Informacja

Applied configuration causes assigning address 192.168.2.50 in network 192.168.2.0/24 to the wired interface which is located on board. Additionally, default gateway is set with IP address 192.168.2.1 and DNS with IP 8.8.8.8.

Ostrzeżenie

Attentione! That addressing schema is used in network in laboratory. In your network might be different. Please check it.

Ostrzeżenie

Network 192.168.2.0/24 eventually is used on wireless interface. Configuration will be changed in next steps of this instruction, in step related to updating network settings.

  • Change file which is located on system partition - path /etc/rc.local.
#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.

apt-get install -y openssh-server

exit 0

Informacja

That configuration causes installation of remote access server SSH when the system is booting. Remember that after first login you need to remove line starting with apt-get... from file /etc/rc.local.

  • Change file responsible for passwords, by removing characters x or * from fields responsible for password, which are in files /etc/passwd and /etc/shadow.
#-/etc/passwd
root::0:0:root:/root:/bin/bash

#-/etc/shadow
root::15454:0:99999:7:::

Informacja

That changes will remove password for root account. After first login please remember about setting password for administrator.

  • Add your own public SSH key to file /root/.ssh/authorized_keys
ssh-rsa AAA... user@hostname

Informacja

Your public SSH key is located in file ~/.ssh/id_rsa.pub. If you do not have this file it means that you do not have SSH key. To generate the private and public key, please execute command ssh-keygen. That works on Linux only.

  • Unmount system partition.
  • Pull out card from reader.
  • Connect board with network device, eg. switch, using network cable..
  • Put card in reader in PandaBoard.
  • Turn on PandaBoard.

Second configuration boot

  • Login to the system using SSH ssh root@192.168.2.50.
  • Set password for root using command passwd root.
  • Remove line apt-get install -y openssh-server from file /etc/rc.local.
  • Set system name in file:

/etc/hostname

panda.robonet

/etc/hosts

127.0.0.1 localhost
127.0.1.1 panda panda.robonet

Ostrzeżenie

Interrupt board wizard configuration which is running on the console (available when serial port is used).

  • Execute command fuser -k /var/cache/debconf/config.dat sevaral times.
  • Remove package oem-config (using aptitude - aptitude purge oem-config) and directory /var/lib/oem-config.
  • Restart system using command reboot.

Updating software

Updating system

  • Install screen using aptitude install screen.
  • Start screen using screen.

Ostrzeżenie

It is available updating to Ubuntu 14.04.1 LTS using command do-release-upgrade. Due to issues with modules for devices Ninedof and Roboclaw it is not recommended. Following steps could skipped and you can jump to step related to updating packages.

Informacja

Update process executed by command do-release-upgrade can take few minutes. Using screen prevents situation that command execution will be interrupted and allows detaching from console/session with keys [Ctrl]+[a] and [d]. Reconnecting can be done by executing command screen -r.

Ostrzeżenie

Please monitor updating process. During updating there will be several questions. When updating process will finish system need to be rebooted. Reboot need to be confirmed.

Zobacz także

Packages which are used by PandaBoard are published in the repository http://ports.ubuntu.com/pool/main/l/linux-ti-omap4/.

After finished update by tool do-release-upgrade system does not support wireless network. You need add omap repository to repositories. After this, update packages list need to be done and following packages need to be installed:

aptitude install -y software-properties-common
add-apt-repository ppa:tiomap-dev/release
aptitude update
touch /boot/initrd.img-3.13.0-37-generic
aptitude install linux-headers-omap linux-image-omap linux-omap

Ostrzeżenie

Kernel installation requires files in directory /boot/. When some files are missing, please create them using command touch.

  • Execute reboot.

Updating packages

Recommended is to turn off installing recommended packages in aptitude:

  • Start aptitude
  • Use keys [Ctrl]+[t]
  • Go to menu Options → Preferences
  • Disable option Install recommended packages automatically
  • Close aptitude using keys [Ctrl]+[q]
  • Perform update i install additional packages:
aptitude update
touch /boot/initrd.img-3.2.0-1455-omap4
aptitude full-upgrade
aptitude install -y
aptitude install -y wpasupplicant wireless-crda wireless-regdb
aptitude install -y htop psmisc mc unzip bash-completion cpufrequtils ntp
aptitude install -y byobu tmux

Ostrzeżenie

Kernel installation requires files in directory /boot/. When some files are missing, please create them using command touch.

  • Add to file /etc/rc.local line iw reg set PL.
  • Change network settings: to file /etc/network/interfaces add settings related to wireless network:
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
    address 192.168.1.50
    netmask 255.255.255.0

auto wlan0
iface wlan0 inet dhcp
    pre-up  ifconfig wlan0 hw ether de:ad:be:ef:00:10
    wpa-ssid "SSID"
    wpa-psk  "PSK"

Informacja

To have correctly working wireless network MAC address need to be setup manually.

Ostrzeżenie

Be aware that network addressing settings have been changed in last step due to fact that the same network cannot be used on both interfaces.

Informacja

Above configuration is used in wireless network robolab which is in laboratory. Current preshared key for wireless network is published in laboratory. IP addresses are connected with MAC addresses. In laboratory used MAC prefix is de:ad:be:ef:00:**. Last two characters decide which IP address will be assigned. Following scheme is used:

de:ad:be:ef:00:00 - 192.168.2.200
de:ad:be:ef:00:01 - 192.168.2.201
...
de:ad:be:ef:00:09 - 192.168.2.209
de:ad:be:ef:00:10 - 192.168.2.210
  • Reboot system.
  • Connect to the system using IP address assigned by router. You can check it via administrative portal.

Updating bootloader

To have card combatible with board in version B3, you need download latest bootloader version u-boot and manually compile it as per following instruction. To execute following commands additional software need to be installed:

  • make
  • g++
  • gcc
  • u-boot-tools
  • g++-arm-linux-gnueabihf
  • gcc-arm-linux-gnueabihf
  • binutils-arm-linux-gnueabihf

Command to execute: apt-get install make g++ gcc u-boot-tools g++-arm-linux-gnueabihf gcc-arm-linux-gnueabihf binutils-arm-linux-gnueabihf.

For some distributions version need to be changed. For Debian, current testing version has listed packages.

$ wget ftp://ftp.denx.de/pub/u-boot/u-boot-latest.tar.bz2
  [..]
$ tar xf u-boot-latest.tar.bz2
$ cd u-boot-*
$ make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- omap4_panda_config
  HOSTCC  scripts/basic/fixdep
  HOSTCC  scripts/kconfig/conf.o
  SHIPPED scripts/kconfig/zconf.tab.c
  SHIPPED scripts/kconfig/zconf.lex.c
  SHIPPED scripts/kconfig/zconf.hash.c
  HOSTCC  scripts/kconfig/zconf.tab.o
  HOSTLD  scripts/kconfig/conf
#
# configuration written to .config
#
$ make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-
  [..]
$ cat <<EOF > boot.script
fatload mmc 0:1 0x80000000 uImage
setenv bootargs rw vram=32M fixrtc mem=1G@0x80000000 root=/dev/mmcblk0p2 console=ttyO2,115200n8 rootwait
bootm 0x80000000
EOF
$ mkimage -A arm -T script -C none -n "Boot Image" -d boot.script boot.scr
  Image Name:   Boot Image
  Created:      Fri Nov 20 17:48:09 2015
  Image Type:   ARM Linux Script (uncompressed)
  Data Size:    164 Bytes = 0.16 kB = 0.00 MB
  Load Address: 00000000
  Entry Point:  00000000
  Contents:
    Image 0: 156 Bytes = 0.15 kB = 0.00 MB
$ mkimage -A arm -T script -C none -n "Boot Image" -d boot.script boot.scr

As a result of these commands, following files will be generated and should be copied on first partition of memory card:

  • boot.scr
  • boot.script
  • MLO
  • u-boot.bin
  • u-boot.img

After copying that files, card can be used on both PandaBoard types B2 and B3.

Post-configuration

  • Add to /etc/modules line:
...
i2c-dev
  • Update /etc/init.d/cpufrequtils:
...
GOVERNOR="performance"
...
  • Be aware about script /etc/init.d/ondemand. It need to be disabled from runlevel by command update-rc.d -f ondemand remove.