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= Xen Installation =
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== 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
}}}

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== 3. Xen Operation ==
=== 3.1 Install Guest OS (DomU) ===

 * To create simple Guest OS, try ''xen-create-image'' which is included in ''[http://www.xen-tools.org/ xen-tools]''
{{{
$ man xen-create-image
}}}
   * Debian package: [http://packages.debian.org/etch/xen-tools 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
}}}

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= 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