KVM Installation Use

#创建yum源

Rm-rf/etc/yum.repos.d/other

Mkdir/etc/yum.repos.d/other

Mv/etc/yum.repos.d/*.repo/etc/yum.repos.d/other

Wget-o/etc/yum.repos.d/centos-base.repo Http://mirrors.aliyun.com/repo/Centos-6.repo

Yum Clean All

Yum Makecache

RPM-IVH http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm

#查看是英特尔的VT-X, or AMD's AMD-V technology

#egrep-E "VMX|SVM"/proc/cpuinfo--color

#安装命令qemu-KVM, the command used to create the virtual machine

Yum-y Install QEMU-KVM

#lsmod | grep KVM

#rpm-QL QEMU-KVM

#cat/etc/sysconfig/modules/kvm.modules

#创建管理工具

Yum-y Install Virt-manager python-virtinst qemu-kvm-tools libvirt Libvirt-python

#创建kvm硬盘,-f Specifies the hard drive type, raw is a floppy

Qemu-img create-f Raw/opt/kvm.raw 10G

#qemu-img Info/opt/kvm.raw

#拷贝安装光盘镜像到服务器

Mount/dev/cdrom/media

DD If=/dev/cdrom Of=/opt/centos64.iso

#启服服务, install the virtual machine

/usr/libexec/qemu-kvm

Service LIBVIRTD Start

Virt-install--virt-type KVM--name kvm-demo--ram--cdrom=/opt/centos64.iso--network network=default--graphics VNC , listen=0.0.0.0--noautoconsole--os-type=linux--os-variant=rhel6--disk Path=/opt/kvm.raw

#ifconfig

#ps aux | grep DNV

#ll/etc/libvirt

#cat/etc/libvirt/qemu/kvm-demo.xml

#/usr/libexec/qemu-kvm-cpu?

#查看当前已经启动的虚拟机

Virsh List

#查看所有虚拟机 (including virtual machines that have been turned off)

Virsh List--all

#启动虚拟机

Virsh Start Kvm-demo

#ps aux | grep KVM

#netstat-TLNP | grep 5900

#brctl Show

#ip Add Li

#qemu-img Info/opt/kvm.raw

#关闭虚拟机

Virsh--help | grep stop

Virsh Destory Kvm-demo

#拷贝虚拟机, two step-by-step copy of the XML file, one-step copy of the disk file

Virsh--help | grep xml

Virsh dumpxml Kvm-demo > New.xml

CP Kvm.raw New.raw

#修改new. xml

Change UUID (9 rows), disk file name (raw) 31 lines, Virtual machine name (4 lines), mac48 line

Change it to the new disk name.

#更改硬盘, add hard drive capacity

Qemu-img Resize New.raw +1g

#转换磁盘格式, after conversion, modify the XML file, modify the disk format

Qemu-img convert-c-F raw-o qcow2 New.raw New.qcow2

#编辑xml文件

Virsh Edit Kvm-new

#检查磁盘文件有没有错误

Qemu-img Check/opt/new.qcow2

#查看磁盘实际使用大小

Qemu-img Info/opt/new.qcow2

#创建一个快照, the machine can take a snapshot

Qemu-img snapshot-c Backup/opt/new.qcow2

#查看快照

Qemu-img snapshot-l/opt/new.qcow2

20:30

#监控虚拟机

Yum-y Install Virt-top

Virt-top

This article is from the "Wsyht blog" blog, make sure to keep this source http://wsyht2015.blog.51cto.com/9014030/1790258

KVM Installation Use