二，安装配置KVM
| 代码如下 | 复制代码 |
|
# yum -y install kvm python-virtinst libvirt bridge-utils ＼ virt-manager qemu-kvm-tools virt-viewer virt-v2v qemu-kvm tunctl [root@localhost ~]#vim /etc/sysconfig/selinux //关闭selinux SELINUX=disabled [root@localhost ~]#reboot [root@localhost ~]# cat /etc/redhat-release CentOS release 6.5 (Final) //centos 6.5 |
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三，启动libvirtd
| 代码如下 | 复制代码 |
| [root@localhost ~]# /etc/init.d/libvirtd start //启动 [root@localhost ~]# ps -e|grep libvirtd //查看是否启动 19458 ? 00:00:01 libvirtd |
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四，查看kvm模块是否正确加载
| 代码如下 | 复制代码 |
| [root@localhost ~]# lsmod |grep kvm kvm_intel 54285 0 kvm 333172 1 kvm_intel |
|
五，配置网络桥接
| 代码如下 | 复制代码 |
| [root@localhost network-scripts]# cat ifcfg-eth0 |awk '{if($0 !~ /^$/ && $0 !~ /^#/) {print $0}}' DEVICE=eth0 TYPE=Ethernet ONBOOT=yes BOOTPROTO=none BRIDGE=br0 IPV6INIT=no HWADDR=F8:BC:12:60:99:86 [root@localhost network-scripts]# cat ifcfg-br0 |awk '{if($0 !~ /^$/ && $0 !~ /^#/) {print $0}}' DEVICE=br0 TYPE=Bridge ONBOOT=yes BOOTPROTO=static IPADDR=192.168.10.103 GATEWAY=192.168.10.1 NETMASK=255.255.255.0 DNS1=192.168.10.1 IPV6INIT=no DELAY=0 |
|
重启网络，发现报以下错误：
[root@localhost network-scripts]# /etc/init.d/network start
弹出环回接口： [确定]
弹出界面 eth0： 错误：激活连接失败：Master connection not found or invalid
[失败]
弹出界面 br0： 错误：激活连接失败：Failed to determine connection's virtual interface name
[失败]
RTNETLINK answers: File exists
RTNETLINK answers: File exists
RTNETLINK answers: File exists
解决办法：
[root@localhost rules.d]# service NetworkManager stop //这个关闭掉就行
停止 NetworkManager 守护进程： [确定]
[root@localhost rules.d]# service network restart
正在关闭接口 br0： [确定]
正在关闭接口 eth0： [确定]
关闭环回接口： [确定]
弹出环回接口： [确定]
弹出界面 eth0： [确定]
弹出界面 br0： Determining if ip address 192.168.10.103 is already in use for device br0...
[确定]
如果以下内容就说明配置成功了：
[root@localhost network-scripts]# ifconfig
br0 Link encap:Ethernet HWaddr F8:BC:12:60:99:86 //有这个就OK
inet addr:192.168.10.103 Bcast:192.168.10.255 Mask:255.255.255.0
inet6 addr: fe80::fabc:12ff:fe60:9986/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:36416 errors:0 dropped:0 overruns:0 frame:0
TX packets:28648 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:13151508 (12.5 MiB) TX bytes:5962449 (5.6 MiB)
eth0 Link encap:Ethernet HWaddr F8:BC:12:60:99:86
inet6 addr: fe80::fabc:12ff:fe60:9986/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1360857 errors:0 dropped:0 overruns:0 frame:0
TX packets:902173 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1913592871 (1.7 GiB) TX bytes:72387220 (69.0 MiB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:176842 errors:0 dropped:0 overruns:0 frame:0
TX packets:176842 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:880282316 (839.5 MiB) TX bytes:880282316 (839.5 MiB)
virbr0 Link encap:Ethernet HWaddr 52:54:00:1A:B6:F1
inet addr:192.168.122.1 Bcast:192.168.122.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:37 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:4651 (4.5 KiB)
[root@localhost network-scripts]# brctl show
bridge name bridge id STP enabled interfaces
br0 8000.f8bc12609986 no eth0 //有这个就OK
virbr0 8000.5254001ab6f1 yes virbr0-nic
六，用virt-install生成.img文件
| 代码如下 | 复制代码 |
| # virt-install --name=ubuntu1 ＼ --ram 1024 --vcpus=1 ＼ --disk path=/root/ubuntu1.img,size=10 ＼ --accelerate --cdrom /root/ubuntu-14.04-desktop-amd64.iso ＼ --graphics vnc,port=5920 --network bridge=br0 |
|
如果报以下错误：
could not open disk image : Permission denied
解决方法：
[root@localhost ~]# cat /etc/libvirt/qemu.conf |awk '{if($0 !~ /^$/ && $0 !~ /^#/) {print $0}}'
vnc_listen = "0.0.0.0"
user = "root" //去掉注释
group = "root" //去掉注释
dynamic_ownership = 0 //去掉注释，把1改为0
这一步做完，系统文件就好了。
七，启动虚拟机
如果报以下错误
[root@localhost ~]# virsh start ubuntu1
错误：域已经活跃
解决办法：
[root@localhost ~]# pkill qemu-kvm
[root@localhost ~]# virsh start ubuntu1
域 ubuntu1 已开始
[root@localhost ~]# virt-viewer ubuntu1 //进入图形界面