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<h1 style="text-align: center; color: blue">Xen 4.0 Installation (Debian Lenny)</h1>
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= 【安裝基本套件】 =
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$ sudo aptitude install bcc bin86 gawk bridge-utils iproute libcurl3 \
libcurl4-openssl-dev bzip2 module-init-tools transfig tgif texinfo \
texlive-latex-base texlive-latex-recommended texlive-fonts-extra \
texlive-fonts-recommended pciutils-dev mercurial build-essential \
make gcc libc6-dev zlib1g-dev python python-dev python-twisted \
libncurses5-dev patch libvncserver-dev libsdl-dev libjpeg62-dev \
iasl libbz2-dev e2fslibs-dev git-core uuid-dev

// 若是 64bit 系統還需安裝
$ sudo aptitude install gcc-multilib
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= 【安裝 Xen 4.0】 =
== [法一：從 Debian 的套件庫安裝 Xen] ==
因目前 Debian 官方維護的 Xen 套件版本較舊(Xen 3.2)，Kernel 版本也較舊(2.6.26)，若想使用最新版的 Xen 4.0 和較新的 Kernel 2.6.31 必須從 source 安裝
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$ sudo aptitude install xen-linux-system-2.6.26-2-xen-amd64 xen-hypervisor-3.2-1-amd64 xen-tools
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== [法二：從 Source 安裝 Xen] ==
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$ cd /usr/src
$ sudo wget http://bits.xensource.com/oss-xen/release/4.0.0/xen-4.0.0.tar.gz
$ sudo tar zxvf xen-4.0.0.tar.gz
$ cd xen-4.0.0/
$ make -j 4 world
$ make insatll

$ sudo mkinitramfs -o /boot/initrd.img-2.6.31.13 2.6.31.13
$ sudo update-grub
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== [法三：從 Source 安裝 Xen 並自行設定 Kernel 選項] ==
 * [http://pasik.reaktio.net/xen/pv_ops-dom0-debug/config-2.6.31.6-pvops-dom0-xen-master-x86_64 也可以下載官方的 Kernel 設定檔]，或自己手動編輯
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// Xen Hypervisior
$ cd /usr/src
$ sudo wget http://bits.xensource.com/oss-xen/release/4.0.0/xen-4.0.0.tar.gz
$ sudo tar zxvf xen-4.0.0.tar.gz
$ cd xen-4.0.0/
$ sudo make -j 4 xen tools stubdom
$ sudo make install-xen
$ sudo make install-tools
$ sudo make install-stubdom

// Xen Kernel
$ cd /usr/src
$ sudo git clone git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git linux-2.6-xen
$ cd linux-2.6-xen
$ sudo make menuconfig
$ sudo make -j 4
$ sudo make install
$ sudo make modules_install
$ sudo mkinitramfs -o /boot/initrd.img-2.6.31.13 2.6.31.13

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= 【問題】 =
 * ERROR Internal error: Could not obtain handle on privileged command interface
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#!sh
ERROR Internal error: Could not obtain handle on privileged command interface (2 = No such file or directory)
Traceback (most recent call last):
  File "/usr/sbin/xend", line 36, in <module>
    from xen.xend.server import SrvDaemon
  File "usr/lib/python2.5/site-packages/xen/xend/server/SrvDaemon.py", line 26, in <module>
  File "usr/lib/python2.5/site-packages/xen/xend/server/relocate.py", line 28, in <module>
  File "usr/lib/python2.5/site-packages/xen/xend/XendDomain.py", line 36, in <module>
  File "usr/lib/python2.5/site-packages/xen/xend/XendCheckpoint.py", line 20, in <module>
  File "usr/lib/python2.5/site-packages/xen/xend/image.py", line 46, in <module>
xen.lowlevel.xc.Error: (1, 'Internal error', 'Could not obtain handle on privileged command interface (2 = No such file or directory)')
}}}
   * 解法
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# su root -c  'echo "none /proc/xen xenfs defaults 0 0" >> /etc/fstab'
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= 【Reference】 =
 * [http://wiki.xensource.com/xenwiki/Xen4.0 Xen4.0]
 * [http://www.vpsee.com/2010/04/install-xen-on-debian-from-source/ 在 Debian 上源码安装 Xen]
 * [http://bderzhavets.wordpress.com/2010/04/24/set-up-ubuntu-10-04-server-pv-domu-at-xen-4-0-dom0-pvops-2-6-32-10-kernel-dom0-on-top-of-ubuntu-10-04-server/ Set up Ubuntu 10.04 Server PV DomU at Xen 4.0 Dom0 (pvops 2.6.32.12 kernel) Dom0 on top of Ubuntu 10.04 Server]
 * [http://bderzhavets.wordpress.com/2010/05/18/set-up-libvirt-0-7-7xen-4-0-on-top-fedora-13-rc2/ Set up Libvirt 0.7.7&Xen 4.0 Dom0 (2.6.32.13 pvops) on top of Fedora 13 RC2]