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+=========================================
+ Install Virtualization for Block Device
+=========================================
+
+If you intend to use Ceph Block Devices and the Ceph Storage Cluster as a
+backend for Virtual Machines (VMs) or  :term:`Cloud Platforms` the QEMU/KVM and
+``libvirt`` packages are important for enabling VMs and cloud platforms.
+Examples of VMs include: QEMU/KVM, XEN, VMWare, LXC, VirtualBox, etc. Examples
+of Cloud Platforms include OpenStack, CloudStack, OpenNebula, etc.
+
+
+.. ditaa::  +---------------------------------------------------+
+            |                     libvirt                       |
+            +------------------------+--------------------------+
+                                     |
+                                     | configures
+                                     v
+            +---------------------------------------------------+
+            |                       QEMU                        |
+            +---------------------------------------------------+
+            |                      librbd                       |
+            +------------------------+-+------------------------+
+            |          OSDs          | |        Monitors        |
+            +------------------------+ +------------------------+
+
+
+Install QEMU
+============
+
+QEMU KVM can interact with Ceph Block Devices via ``librbd``, which is an
+important feature for using Ceph with cloud platforms. Once you install QEMU,
+see `QEMU and Block Devices`_ for usage.
+
+
+Debian Packages
+---------------
+
+QEMU packages are incorporated into Ubuntu 12.04 Precise Pangolin and later
+versions. To  install QEMU, execute the following::
+
+	sudo apt-get install qemu
+
+
+RPM Packages
+------------
+
+To install QEMU, execute the following:
+
+
+#. Update your repositories. ::
+
+	sudo yum update
+
+#. Install QEMU for Ceph. ::
+
+	sudo yum install qemu-kvm qemu-kvm-tools qemu-img
+
+#. Install additional QEMU packages (optional)::
+
+	sudo yum install qemu-guest-agent qemu-guest-agent-win32
+
+
+Building QEMU
+-------------
+
+To build QEMU from source, use the following procedure::
+
+	cd {your-development-directory}
+	git clone git://git.qemu.org/qemu.git
+	cd qemu
+	./configure --enable-rbd
+	make; make install
+
+
+
+Install libvirt
+===============
+
+To use ``libvirt`` with Ceph, you must have a running Ceph Storage Cluster, and
+you must have installed and configured QEMU. See `Using libvirt with Ceph Block
+Device`_ for usage.
+
+
+Debian Packages
+---------------
+
+``libvirt`` packages are incorporated into Ubuntu 12.04 Precise Pangolin and
+later versions of Ubuntu. To install ``libvirt`` on these distributions,
+execute the following::
+
+	sudo apt-get update && sudo apt-get install libvirt-bin
+
+
+RPM Packages
+------------
+
+To use ``libvirt`` with a Ceph Storage Cluster, you must  have a running Ceph
+Storage Cluster and you must also install a version of QEMU with ``rbd`` format
+support.  See `Install QEMU`_ for details.
+
+
+``libvirt`` packages are incorporated into the recent CentOS/RHEL distributions.
+To install ``libvirt``, execute the following::
+
+	sudo yum install libvirt
+
+
+Building ``libvirt``
+--------------------
+
+To build ``libvirt`` from source, clone the ``libvirt`` repository and use
+`AutoGen`_ to generate the build. Then, execute ``make`` and ``make install`` to
+complete the installation. For example::
+
+	git clone git://libvirt.org/libvirt.git
+	cd libvirt
+	./autogen.sh
+	make
+	sudo make install
+
+See `libvirt Installation`_ for details.
+
+
+
+.. _libvirt Installation: http://www.libvirt.org/compiling.html
+.. _AutoGen: http://www.gnu.org/software/autogen/
+.. _QEMU and Block Devices: ../../rbd/qemu-rbd
+.. _Using libvirt with Ceph Block Device: ../../rbd/libvirt