Setting up Xen Dom0 kernel 2.6.31.12 on OpenSuse 11.2

Setting up Xen Dom0 kernel 2.6.31.13 on OpenSuse 11.2

 * Installation methods are as follows

  (1) Binary tarball from xensource.com(xen-3.x.x-install.tgz)

  (2) RPM download and install

  (3) Online Package installation by zypper or yast or yast2(software installation)

  (4) From source

    - Xen source(make dist-xen,...) / Kernel source+patch(Patch & make modules_install & modifying grub)

    - Xen source / Custom kernel source(make ARCH=xen xconfig, ...)

  * Must-have softwares

  (1) bridge-utils(brctl,...)

  (2) hotplug system(mostly in Linux udev)

  (3) Build utils and related(gcc, binutils, GNU make, zlib, python)

  

1. Check virtualization env. if needed

# rpm -qa | egrep "(xen|virt)" | sort

2. Disable SElinux if installed

3. Install xen related packages and build tools

   (Or install RPMs by yast, yast2 GUI interface...If U r lucky enough).

# zypper search xen*

# zypper install xen xen-devel xen-doc-html xen-doc-pdf xen-libs xen-tools xen_server

# zypper install make gcc gcc-c++

  3-1. Or, install xen by building source like this...

  # wget http://bits.xensource.com/oss-xen/release/3.4.2/xen-3.4.2.tar.gz

  # tar -xvzf xen-3.4.2.tar.gz

  # cd xen-3.4.2

  # zypper install dev86 => essential to build !!

  # make dist-xen dist-tools dist-stubdom

  # make install-xen install-tools install-stubdom

  3-2. Download Vanilla kernel source & xen patch

  # cd /usr/src

  # wget http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.31.12.tar.bz2

  # tar xvjf linux-2.6.31.12.tar.bz2

  # mv linux-2.6.31.12 linux-2.6.31.12-xen-byMe

  # wget http://gentoo-xen-kernel.googlecode.com/files/xen-patches-2.6.31-10.tar.bz2

  # mkdir xen-patches-v10_2.6.31.12

  # cd xen-patches-v10_2.6.31.12

  # tar xvjf ../xen-patches-2.6.31-10.tar.bz2

  # cd ../

  # cd linux-2.6.31.12-xen-byMe

  # for i in `ls ../xen-patches-v10_2.6.31.12/`; do patch -p1 < ../xen-patches-v10_2.6.31.12/"$i"; done

  3-3. Copy original kernel config file for convenience

  # cp /boot/config-2.6.31.xx-generic .config

   * curses lib will be required...

  # make menuconfig => Set each items exactly !

  -----------------------------------------------

  Processor type and features --->

    [*] Enable Xen compatible kernel

    Networking support --->

    Networking options --->

     <*> 802.1d Ethernet Bridging

    Device Drivers --->

     XEN --->

     [*] Privileged Guest (domain 0)

     <M> Backend driver support

     <M>   Block-device backend driver

     <M>   Block-device tap backend driver

     <M>   Block-device tap backend driver 2

     <M>   Network-device backend driver

     <M>   PCI-device backend driver

     <M>   SCSI backend driver

     <M>   USB backend driver

     <*> Block-device frontend driver

     <*> Network-device frontend driver

     <M> SCSI frontend driver

     <M> USB frontend driver

     <*> Framebuffer-device frontend driver

     <*>   Keyboard-device frontend driver

     [*] Disable serial port drivers

     <*> Export Xen attributes in sysfs

        Xen version compatibility (3.3.0 and later) --->

           3.3.0 and later

  -----------------------------------------------

  3-4. Xenifying Kernel - Make & install

  # export CONCURRENCY_LEVEL=5

  # make => maybe some hours ... --;

  # make modules

  # make modules_install  

  # make install

   * If using mkinitramfs,

  # mkinitramfs -o /boot/initrd.img-2.6.31.12-xen-byMe 2.6.31.12-xen-byMe

   * Or if mkinitrd,

  # depmod -a 2.6.31.12-xen-byMe

  # mkinitrd /boot/initrd-2.6.31.12-xen-byMe.img 2.6.31.12-xen-byMe

  

  3-5. Now, edit Grub menu

  # vi /boot/grub/menu.lst

  Title Xen 3.4.2 - Kernel 2.6.31.12 on OpenSUSE 11.2

    kernel /boot/xen.gz dom0_mem=512000

    module /boot/vmlinuz-2.6.31.12-xen-ByMe ...

    module /boot/initrd-2.6.31.12-xen-byMe.img <= Add this line

  

4. Reboot the system by Grub menu - Xen kernel

  # chkconfig --add xend

  # chkconfig xend on

  # /etc/init.d/xend start

  # chkconfig --add xendomains

  # chkconfig xendomains on

  # /etc/init.d/xendomains start

  

  # chkconfig --add libvirtd

  # chkconfig libvirt on

  # /etc/init.d/libvirtd start

  

5. Check if Xen dom0 system is correctly set up

  # ps aux | egrep "(xen|virt)" | sort

  ...xenwatch, xenbus, xend, HalDaemon.py, xenstored, xencolsoled, libvirtd, ...

  

All done, now test it by creating VMs.

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