Xen Installation

1. Installation

1.1 Install from Debian package (the latest version -> Xen-3.0.3)

• Our OS is Debian etch, we use deb package to install Xen

  $ sudo aptitude install xen-linux-system-2.6.18-6-xen-686
  (you can refer to our installation log in attache file)
  
  $ sync ; sudo reboot
  (reboot system and choose xen-enable kernel)
  

1.2 Install form Xen source (the latest version -> Xen-3.2.0, OpenNebula just spuuort Xen-3.1 later)

• Install requirement package

  $ aptitude install mercurial iproute bridge-utils python-twisted gcc binutils make zlib1g-dev python-dev transfig bzip2 screen ssh debootstrap libcurl3-dev libncurses5-dev x-dev libsdl1.2-dev  bin86 bcc python-pam patch latex-make qemu qemu-launcher qemuctl graphviz graphviz-dev lvm2 libvncserver-dev libjpeg62-dev libjpeg62 gettext python-xml gawk pciutils pciutils-dev libc6.xen
  

• Install Xen-3.2.0

  $ wget http://bits.xensource.com/oss-xen/release/3.2.0/xen-3.2.0.tar.gz
  $ wget http://bits.xensource.com/oss-xen/release/3.2.0/linux-2.6.18-xen-3.2.0.tar.gz
  $ mkdir ~/xen
  $ tar zxvf xen-3.2.0.tar.gz -C ~/xen/ && tar zxvf linux-2.6.18-xen-3.2.0.tar.gz -C ~/xen/
  $ cd ~/xen/xen-3.2.0
  $ hg clone http://xenbits.xensource.com/linux-2.6.18-xen.hg
  $ make dist && make install
  $ depmod 2.6.18-xen
  $ mkinitramfs -o /boot/initrd.img-2.6.18-xen 2.6.18-xen
  $ update-grub
  

2. Check Xen

• Check our Xen system

  $ uname -a
  Linux one 2.6.18-6-xen-686 #1 SMP Sun Feb 10 22:43:13 UTC 2008 i686 GNU/Linux
  

• Configure our Xen environment

  $ vim /etc/xen/xend-config.sxp
  71:    network-script network-bridge
  87: #network-script netwok-dummy
  
  $ xend restart
  $ xm list
  

3. Xen Operation

3.1 Install Guest OS (DomU)

• To create simple Guest OS, try xen-create-image which is included in ​xen-tools

  $ man xen-create-image
  

  • Debian package: ​xen-tools
• Install Guest OS

  $ sudo mkdir /home/xen_img
  $ sudo dd if=/dev/zero of=/home/xen_img/etch.img bs=1G count=5
  $ sudo dd if=/dev/zero of=/home/xen_img/etch.swap bs=514MB count=1
  $ sudo /home/xen_img/mkfs.ext3 etch.img
  $ sudo /home/xen_img/mkswap etch.swap
  $ sudo mount -o loop etch.img /mnt
  $ sudo debootstrap --arch i386 etch /mnt/ http://free.nchc.org.tw/debian
  

• Config Guest OS

  $ sudo vim /etc/fstab
  /etc/fstab
  /dev/hda1    /          ext3      defaults 0 1
  /dev/hda2   swap    swap      defaults 0 0
  proc             /proc   proc      defaults 0 0
  
  $ sudo vim /etc/hostname
  etch
  
  $ sudo vim /etc/hosts
  $ sudo vim /etc/network/interfaces
  $ sudo cp /etc/apt/sources.list /mnt/etc/apt/
  $ sudo cp -r /lib/modules/2.6.18-6-xen-686/ /mnt/lib/modules/
  
  $ sudo chroot /mnt
  $ passwd root
  $ adduser rock
  $ sudo umount /mnt
  

• Edit Guest OS configuration

  $ sudo vim /home/xen_img/etch.cfg
  # Kernel image
  kernel = "/boot/vmlinuz-2.6.18-6-xen-686"
  ramdisk = "/boot/inird.img-2.6.18-6-xen-686"
  # Domain name
  name = "etch"
  # 0achine information
  vcpus = 4
  memory = 256
  disk = ['file:/home/xen_img/etch.img,hda1,w','file:/home/xen_img/etch.swap,hda2,w']
  vif = ['mac=00:00:00:00:00:01,bridge=xenbr1']
  

• Guest OS problem

  $ mount /home/xen_img/etch.img /mnt
  $ chroot /mnt
  
  Guest booting Error: 4gb seg fixup, process init (pid 1), cs:ip 73:b7e192fc
  $ aptitinstall libc6-xen
  
  locale problem:
  $ aptitinstall install locales
  $ dpkg-reconfigure -a locale
  $ tzxonfig
  

Refrenece

• ​http://www.howtoforge.com/debian_etch_xen_3.1
• ​http://wiki.xensource.com/xenwiki/InstallationNotes
• ​http://www.option-c.com/xwiki/Xen_Debian_Quick_Start
• ​https://help.ubuntu.com/community/Xen