ubuntu server 12.04 下KVM创建虚拟机
一.准备环境1.查看cpu是否支持VT技术 ： egrep ‘(vmx | svm)’ /proc/cpuinfo出现匹配字样则是支持2.开启虚拟化功能：修改bios 找到processor选项中的virtualization状态改为enable，保存退出3.启动实体ubuntu server 12.04系统二.安装kvm及所需要环境1.安装需要的包apt-get -y install kvm libvirt-bin python-libvirt kpartx vim sysstat iftop slurm ebtables vlan snmp snmpd下面是我的搜狐的源：vim /etc/apt/sources.listdeb http://mirrors.sohu.com/ubuntu/ precise main restricted
deb-src http://mirrors.sohu.com/ubuntu/ precise main restricted
deb http://mirrors.sohu.com/ubuntu/ precise-updates main restricted
deb-src http://mirrors.sohu.com/ubuntu/ precise-updates main restricted
deb http://mirrors.sohu.com/ubuntu/ precise universe
deb-src http://mirrors.sohu.com/ubuntu/ precise universe
deb http://mirrors.sohu.com/ubuntu/ precise-updates universe
deb-src http://mirrors.sohu.com/ubuntu/ precise-updates universe
deb http://mirrors.sohu.com/ubuntu/ precise multiverse
deb-src http://mirrors.sohu.com/ubuntu/ precise multiverse
deb http://mirrors.sohu.com/ubuntu/ precise-updates multiverse
deb-src http://mirrors.sohu.com/ubuntu/ precise-updates multiverse
deb http://mirrors.sohu.com/ubuntu/ precise-backports main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ precise-backports main restricted universe multiverse
deb http://mirrors.sohu.com/ubuntu/ precise-security main restricted
deb-src http://mirrors.sohu.com/ubuntu/ precise-security main restricted
deb http://mirrors.sohu.com/ubuntu/ precise-security universe
deb-src http://mirrors.sohu.com/ubuntu/ precise-security universe
deb http://mirrors.sohu.com/ubuntu/ precise-security multiverse
deb-src http://mirrors.sohu.com/ubuntu/ precise-security multiverse
deb http://extras.ubuntu.com/ubuntu precise main
deb-src http://extras.ubuntu.com/ubuntu precise main
三.创建虚拟机
1.虚拟机结构在根下创建images目录，在images下创建iso和test目录。其中iso目录存放iso镜像，test是虚拟机的主机名，里面存放disk.img（虚拟机的硬盘中存放的数据）和config.xml（虚拟机的硬件配置）
2.创建disk.img
qemu-img create -f qcow2 disk.img 10G
##创建虚拟机的硬盘大小和类型（qcow2：文件会慢慢增加，最大为10G）
建立config.xml文件，下面是文件中的内容：
<domain type='kvm'>
<name>douvlfit</name>
<uuid>b41e3e65-2512-b2e0-2c4b-b7f2c0e56613</uuid>
<memory>1048576</memory>
<currentMemory>1048576</currentMemory>
<vcpu>2</vcpu>
<os>
<type arch='x86_64' machine='pc-1.0'>hvm</type>
<boot dev='hd'/>
</os>
<features>
<acpi/>
<apic/>
<pae/>
</features>
<clock offset='localtime'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<devices>
<emulator>/usr/bin/kvm</emulator>
<disk type='file' device='disk'>
<driver name='qemu' type='qcow2'/>
<source file='/images/douvlfit/disk.img'/>
<target dev='vda' bus='virtio'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
</disk>
<interface type='bridge'>
<mac address='52:54:00:15:b3:f1'/>
<source bridge='dianxin'/>
<model type='virtio'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
</interface>
<interface type='bridge'>
<source bridge='neiwang'/>
<model type='virtio'/>
</interface><serial type='file'>
<source path='/images/douvlfit/console.log'/>
<target port='1'/>
</serial>
<serial type='pty'>
<target port='0'/>
</serial>
<console type='file'>
<source path='/images/douvlfit/console.log'/>
<target type='serial' port='1'/>
</console>
<input type='mouse' bus='ps2'/>
<graphics type='vnc' port='-1' autoport='yes'/>
<video>
<model type='cirrus' vram='9216' heads='1'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
</video>
<memballoon model='virtio'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
</memballoon>
</devices>
</domain>
3.关于桥和虚拟机常用的指令：
brctl addbr br0##创建桥brctl delbr br0##删除桥brctl addif br0 eth0 ##将桥与eth0绑定ifconfig eth0 0.0.0.0 ##消除eth0的IPdhclient br0或者ifconfig br0 x.x.x.x ##给br0 加IPvirsh define config.xml ##将config.xml读取到内存virsh undefine xxx ##将虚拟机配置从内存去掉（xxx为虚拟机名字）virsh destory test##关闭虚拟机virsh start test ##开启虚拟机testvirsh list --all ##查看所有虚拟机状态virsh suspend test ##将虚拟机暂停运行virsh resume test ##将暂停的虚拟机恢复运行virsh save test ##保存虚拟机状态virsh dominfo test 显示test的基本信息virsh domname 2 显示id号为2的虚拟机名virsh domid test ## 显示虚拟机id号virsh domuuid test ## 显示虚拟机的uuidvirsh domstate test ## 显示虚拟机的当前状态virsh setvcpus test 4 ## 给不活动虚拟机设置cpu个数virsh edit test ## 编辑配置文件（一般是在刚定义完虚拟机之后）
4.检查KVM模块是否安装成功：lsmod | grep kvm出现下面类似的字样成功vm_amd 69416 1kvm 226208 2 ksm,kvm_amd
检查KVM是否成功安装 ：virsh -c qemu:///system list将会显示如下结果:# virsh -c qemu:///system listId Name State
此时kvm虚拟机环境布置完成，接下来我们应该安装系统：
安装系统我们使用vnc：vim /etc/libvirt/qemu.conf做如下的设置：vnc_listen = "0.0.0.0"vnc_password = "123456"user = "root"group = "root"
virsh vncdisplay test ##查看虚拟机的vnc端口
我是个凑数的。。。 过来看看的 有竞争才有进步嘛 走过了年少，脚起了水泡 所有的男人生来平等，结婚的除外。 商女不知亡国恨、妓女不懂婚外情。
页:
[1]