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= Build Xen & Lustre enabled kernel =
 * Our OS: Dbian etch
 * Our Method:先使用xen patch過的kernel 2.6.18，之後在使用debian Lustre團隊的 patch file 來patch，將這新的kernel安裝至系統

== 1.必要套件 ==
 * Build kernel需要的:
{{{
sudo aptitude install build-essential libncurses5-dev kernal-package
}}}
 * Xne需要的:
{{{
$ sudo apt-get install 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 tetex-extra tetex-base openssl libssl-dev mercurial
}}}

 * Lustre需要的:
{{{
$ sudo aptitude install bzip2 debhelper dpatch libsnmp-dev module-assistant

安裝 libxml
$ sudo wget http://http.us.debian.org/debian/pool/main/libx/libxml2/libxml2_2.6.27.dfsg-2_i386.deb
$ sudo dpkg -i libxml2_2.6.27.dfsg-2_i386.deb

安裝 pyxml
$ sudo wget PyXML-0.8.4.tar.gz
$ sudo python setup.py build
$ sudo python setup.py install
}}}
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== 2.Patch和安裝kernel ==
 * 下載Xen patch過的2.6.18 kernel和 Xen tar ball
{{{
$ cd /usr/src
$ sudo wget http://bits.xensource.com/oss-xen/release/3.2.1/xen-3.2.1.tar.gz
$ sudo tar zxvf xen-3.2.1.tar.gz
$ sudo hg clone http://xenbits.xensource.com/linux-2.6.18-xen.hg

下載Debian Lustre 的 deb 檔 (http://packages.debian.org/source/sid/lustre)
$ wget http://debian.linux.org.tw/debian/pool/main/l/lustre/linux-patch-lustre_1.6.5-1_all.deb
$ wget http://debian.linux.org.tw/debian/pool/main/l/lustre/lustre-source_1.6.5-1_all.deb
$ dpkg -i linux-patch-lustre_1.6.5-1_all.deb lustre-source_1.6.5-1_all.deb

使用Lustre的patch file 來 patch xen kernel
$ cd linux-2.6.18-xen.hg
$ sudo ln -s /usr/src/kernel-patches/lustre/series/2.6.18-vanilla.series /usr/src/linux-2.6.18-xen.hg/series
$ sudo ln -s /usr/src/kernel-patches/lustre/patches/ /usr/src/linux-2.6.18-xen.hg/.
$ sudo quilt -av push
}}}
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== 3.Make Xen image ==
{{{
$ cd /usr/src/xen-3.2.1
$ sudo make world
（SCSI disk I/O must build-in）
$ sudo make install
$ sudo update-grub

$ cd /usr/src/linux-2.6.18-xen.hg

$ sudo reboot
(choose xen image to booting)
}}}
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== 4.Make Lustre modules ==
{{{
$ cd /usr/src/linux-2.6.18-xen.hg
$ sudo make menuconfig (make config)
$ sudo make -j 5
$ sudo make install
$ sudo make modules_install
$ sudo update-grub
$ sudo reboot
(choose new kernel booting)
}}}
{{{
$ cd /usr/src
$ sudo tar jxvf lustre.tar.bz2
$ cd module/lustre
$ sudo ./configure -with--linux=/usr/src/linux-2.6.18-xen.hg
$ sudo make
$ sudo make install
}}}
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== 5.Test Xen & Lustre ==
{{{
startup xen 
$ sudo xend start
$ sudo xm list

startup Lustre
$ sudo modprobe ldiskfs
$ sudo modprob lnet
$ sudo mkfs.lustre -t lustre 
}}}
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