Monday, May 12, 2014

Installing virtualization packages on Red Hat Enterprise Linux



To use virtualization on Red Hat Enterprise Linux you require at least the qemu-kvm and qemu-img packages. These packages provide the user-level KVM emulator and disk image manager on the host Red Hat Enterprise Linux system.
To install the qemu-kvm and qemu-img packages, run the following command: 
 
# yum install qemu-kvm qemu-img
 
Several additional virtualization management packages are also available:
Recommended virtualization packages
python-virtinst
Provides the virt-install command for creating virtual machines.
libvirt
The libvirt package provides the server and host side libraries for interacting with hypervisors and host systems. The libvirt package provides the libvirtd daemon that handles the library calls, manages virtual machines and controls the hypervisor.
libvirt-python
The libvirt-python package contains a module that permits applications written in the Python programming language to use the interface supplied by the libvirt API.
virt-manager
virt-manager, also known as Virtual Machine Manager, provides a graphical tool for administering virtual machines. It uses libvirt-client library as the management API.
libvirt-client
The libvirt-client package provides the client-side APIs and libraries for accessing libvirt servers. The libvirt-client package includes the virsh command line tool to manage and control virtual machines and hypervisors from the command line or a special virtualization shell.
Install all of these recommended virtualization packages with the following command: 
 
# yum install virt-manager libvirt libvirt-python python-virtinst libvirt-client
 
Installing Virtualization package groups
The virtualization packages can also be installed from package groups. The following table describes the virtualization package groups and what they provide.

Table 5.1. Virtualization Package Groups
Package Group Description Mandatory Packages Optional Packages
Virtualization Provides an environment for hosting virtual machines qemu-kvm qemu-guest-agent, qemu-kvm-tools
Virtualization Client Clients for installing and managing virtualization instances python-virtinst, virt-manager, virt-viewer virt-top
Virtualization Platform Provides an interface for accessing and controlling virtual machines and containers libvirt, libvirt-client, virt-who, virt-what fence-virtd-libvirt, fence-virtd-multicast, fence-virtd-serial, libvirt-cim, libvirt-java, libvirt-qmf, libvirt-snmp, perl-Sys-Virt
Virtualization Tools Tools for offline virtual image management libguestfs libguestfs-java, libguestfs-tools, virt-v2v

To install a package group, run the yum groupinstall <groupname> command. For instance, to install the Virtualization Tools package group, run the yum groupinstall "Virtualization Tools" command. 
 
 

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