CentOS6.6默认安装完虚机化平台和虚拟化工具后没有virt-install命令
RT，这是因为没有安装 python-virtinst ，可以只用yum安装，或者使用rpm安装。
使用rpm安装的时候是有依赖关系的，不过没有关系，我们可以参照yum的安装过程来搞到依赖关系，如下：
rpm -ivh libselinux-python-2.0.94-5.8.el6.x86_64 libvirt-python-0.10.2-46.el6.x86_64 python-virtinst-0.600.0-24.el6.noarch
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[root@localhost Packages]# yum install python-virtinst
Loaded plugins: fastestmirror, security
Setting up Install Process
Determining fastest mirrors
Resolving Dependencies
--> Running transaction check
---> Package python-virtinst.noarch 0:0.600.0-24.el6 will be installed
--> Processing Dependency: libvirt-python >= 0.2.0 for package: python-virtinst-0.600.0-24.el6.noarch
--> Processing Dependency: libselinux-python for package: python-virtinst-0.600.0-24.el6.noarch
--> Running transaction check
---> Package libselinux-python.x86_64 0:2.0.94-5.8.el6 will be installed
---> Package libvirt-python.x86_64 0:0.10.2-46.el6 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
======================================================================================================
Package Arch Version Repository Size
======================================================================================================
Installing:
python-virtinst noarch 0.600.0-24.el6 vir 501 k
Installing for dependencies:
libselinux-python x86_64 2.0.94-5.8.el6 vir 203 k
libvirt-python x86_64 0.10.2-46.el6 vir 496 k
Transaction Summary
======================================================================================================
Install 3 Package(s)
Total download size: 1.2 M
Installed size: 3.9 M
Is this ok [y/N]: y
Downloading Packages:
------------------------------------------------------------------------------------------------------
Total 3.7 MB/s | 1.2 MB 00:00
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Warning: RPMDB altered outside of yum.
Installing : libselinux-python-2.0.94-5.8.el6.x86_64 1/3
Installing : libvirt-python-0.10.2-46.el6.x86_64 2/3
Installing : python-virtinst-0.600.0-24.el6.noarch 3/3
Verifying : python-virtinst-0.600.0-24.el6.noarch 1/3
Verifying : libvirt-python-0.10.2-46.el6.x86_64 2/3
Verifying : libselinux-python-2.0.94-5.8.el6.x86_64 3/3
Installed:
python-virtinst.noarch 0:0.600.0-24.el6
Dependency Installed:
libselinux-python.x86_64 0:2.0.94-5.8.el6 libvirt-python.x86_64 0:0.10.2-46.el6
Complete!
[root@localhost Packages]#
[root@localhost Packages]#
[root@localhost Packages]#
[root@localhost Packages]#
[root@localhost Packages]#
[root@localhost Packages]# virt-
virt-clone virt-host-validate virt-install virt-what
virt-convert virt-image virt-pki-validate virt-xml-validate