wiki:GIB-Ubuntu-Instructions

Version 2 (modified by zbertils@bbn.com, 7 years ago) (diff)

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Setting up GENI-in-a-Box Development Environment for Ubuntu 10.04

Setting up the environment consists of installing OpenVZ to the Ubuntu OS, and optionally Python 2.7. Since Python 2.6 comes on Ubuntu 10.04 and is enough to satisfy the development requires the instructions for installing Python 2.7 are omitted for the time being. The main development requirement that needs to be installed is OpenVZ.

These instructions have been taken mostly from https://help.ubuntu.com/community/OpenVZ with some modifications. The instructions on that page are outdated or broken in some areas. The correct installation is below. The original instructions state OpenVZ can be installed from RPM files, but some of the dependencies are broken. The best way to install OpenVZ on Ubuntu 10.04 is to use the set of instructions below. These instructions only apply to the desktop version referred to in step 1.

Setting up OpenVZ

  1. Create a VirtualBox container, and install Ubuntu 10.04 LTS from http://releases.ubuntu.com/lucid/ubuntu-10.04.4-desktop-i386.iso. For easy use you can optionally install Guest Additions on the Ubuntu VM to copy-paste commands in the terminal from your host machine. This first step should have been done before getting to this page, but is mentioned to double check before proceeding.
  1. Before getting started make sure the machine is up to date.
        sudo apt-get update
        sudo apt-get upgrade
    
  1. Reconfigure dash. When the "Configuring dash" screen appears select NO.
        sudo dpkg-reconfigure dash
    
  1. Install required packages to compile the kernel. This will be needed when the OpenVZ kernel is compiled.
        sudo apt-get install kernel-package libncurses5-dev fakeroot wget bzip2 module-assistant debhelper build-essential bridge-utils
    
  1. Set the following variables that will be used.
        Variant="linux-image-generic"
        VersionAppendix="-openvz"
        MyConfigFile="kernel-2.6.32-i686.config.ovz"
    
  1. Set the build dependencies for OpenVZ.
        Package="$(apt-cache showpkg $Variant | grep "^2\.6\.32" | grep "linux-image")"
        Package=$(ReturnWord () { echo $3; }; ReturnWord $Package)
        sudo apt-get build-dep --no-install-recommends $Package
    
  1. Prepare the linux headers before compiling, and create the configuration for the kernel.
        sudo m-a prepare
        sudo kernel-packageconfig
    
  1. Set up multi-core support. This step may not be necessary if your VM is only using one core, but it does not hurt to execute this line anyway.
        Cores=$(Nr () { echo $#; }; Nr $(grep "processor" /proc/cpuinfo | cut -f2 -d":"))
        echo "CONCURRENCY_LEVEL := $(($Cores + 1))" | sudo tee -a /etc/kernel-pkg.conf
    
  1. Download the linux kernel source code.
        cd /usr/src
        sudo wget http://archive.ubuntu.com/ubuntu/pool/main/l/linux/linux_2.6.32.orig.tar.gz
    
  1. Get the OpenVZ patch for the linux kernel, and the OpenVZ kernel itself.
        sudo wget http://download.openvz.org/kernel/branches/2.6.32/current/patches/patch-feoktistov.1-combined.gz
        sudo wget http://download.openvz.org/kernel/branches/2.6.32/current/configs/$MyConfigFile
    
  1. Unpack the source code.
        sudo rm -fR linux-2.6.32
        sudo tar -xpf linux_2.6.32.orig.tar.gz
        sudo rm -fR "linux-2.6.32$VersionAppendix"
        sudo mv linux-2.6.32 "linux-2.6.32$VersionAppendix"
        sudo rm linux
        sudo ln -s "linux-2.6.32$VersionAppendix" linux
    
  1. Apply the OpenVZ patch to the kernel.
        cd /usr/src/linux
        sudo gunzip -dc /usr/src/patch-feoktistov.1-combined.gz | sudo patch -p1 --batch
        sudo cp -f "/usr/src/$MyConfigFile" .config
        sudo make oldconfig
    
  1. One of the make files has a bug in it that needs to be fixed.
        sudo gedit Documentation/lguest/Makefile
    

Change the following lines;

    all: lguest

    clean:
	    rm -f lguest

To be the following;

    all:

    clean:
	    rm -f lguest
  1. Now build the OpenVZ kernel. WARNING: This may take some time, upwards of 1 or 2 hours.
        cd /usr/src/linux
        sudo make-kpkg --initrd --append-to-version=$VersionAppendix --revision=1 kernel_image kernel_headers
    
  1. Install the OpenVZ kernels that were just built.
        cd /usr/src
        sudo dpkg -i linux-image-2.6.32.28-openvz_1_i386.deb
        sudo dpkg -i linux-headers-2.6.32.28-openvz_1_i386.deb
    
  1. Setup the grub menu to load the OpenVZ kernel at boot.
        sudo mkinitramfs -k 2.6.32.28-openvz -o /boot/initrd.img-2.6.32.28-openvz
        sudo update-grub
    
  1. Create a new internet configuration.
        sudo gedit /etc/sysctl.d/10-openvz.conf
    

Place the following text in the file.

    ### Optimized for Ubuntu 10.04
    # vim:ft=sysctl
    # sysctl config for OpenVZ
    #net.ipv4.ip_forward=1

    net.ipv4.conf.default.forwarding = 1
    net.ipv4.conf.default.proxy_arp = 1
    net.ipv4.ip_forward = 1

    # Enables source route verification
    net.ipv4.conf.all.rp_filter = 1

    # Enables the magic-sysrq key
    kernel.sysrq = 1

    # TCP Explict Congestion Notification
    #net.ipv4.tcp_ecn = 0

    # we do not want all our interfaces to send redirects
    net.ipv4.conf.default.send_redirects = 0
  1. Apply the changes to the network configuration.
        sudo sysctl -p /etc/sysctl.d/10-openvz.conf
    
  1. Install the tools used by OpenVZ for managing containers.
        sudo apt-get install --no-install-recommends vzctl vzquota vzdump
    
  1. Create a symlink to be FHS-compliant and then reboot.
        sudo ln -s /var/lib/vz /vz
        sudo reboot
    
  1. Once rebooted, check to make sure the correct kernel was started.
        uname -r
    

The result of that command should be something similar to "2.6.32.28-openvz".

  1. Open a web browser and navigate to a website to make sure the internet configurations were set properly. If there is no internet connection check step 18 and that the text in the file 10-openvz.conf is correct.
  1. Finally, download the Ubuntu 10.04 OpenVZ container template.
        cd /vz/template/cache/
        sudo wget http://download.openvz.org/template/precreated/ubuntu-10.04-x86.tar.gz
    

Testing OpenVZ in Ubuntu 10.04

  1. From a terminal try to create an OpenVZ container.
        sudo vzctl create 101 --ostemplate=ubuntu-10.04-x86
    

There should be no errors seen from this command. It will take about a minute to create the container.

  1. Start the container to make sure it was created properly.
        sudo vzctl start 101
    
  1. Stop and destroy the test container.
        sudo vzctl stop 101
        sudo vzctl destroy 101
    

If these commands failed refer to the OpenVZ documentation on vzctl create/start/stop/destroy. If any of the commands cannot be found refer back to step 20 and make sure the packages were installed.

If no errors were encountered you have successfully installed OpenVZ on Ubuntu 10.04.