CentOS 6 安装 kvm 过程
CentOS 6 安装kvm
[root@localhost ~]# yum -y install qemu-kvm libvirt python-virtinst bridge-utils
查看安装的模块
[root@localhost ~]# lsmod | grep kvm
kvm_intel 55356 0
kvm 372521 1 kvm_intel
[root@localhost ~]# reboot
[root@localhost ~]# ifconfig
---------------------------------------------------------------------------------------
eth0 Link encap:Ethernet HWaddr E0:69:95:FB:7C:D2
inet addr:10.6.0.27 Bcast:10.6.0.255 Mask:255.255.255.0
inet6 addr: fe80::e269:95ff:fefb:7cd2/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1383673 errors:0 dropped:616 overruns:0 frame:0
TX packets:124788 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:328564108 (313.3 MiB) TX bytes:15140325 (14.4 MiB)
Interrupt:20 Memory:fe500000-fe520000
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:580 errors:0 dropped:0 overruns:0 frame:0
TX packets:580 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:49436 (48.2 KiB) TX bytes:49436 (48.2 KiB)
virbr0 Link encap:Ethernet HWaddr 52:54:00:72:7D:E1
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:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
---------------------------------------------------------------------------------------
[root@localhost ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
HWADDR=E0:69:95:FB:7C:D2
TYPE=Ethernet
UUID=46ba3249-6460-48b8-8f47-71c302ce2dd0
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=static
IPADDR=10.6.0.27
NETMASK=255.255.255.0
GATEWAY=10.6.0.1
[root@localhost ~]# vi /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
HWADDR=E0:69:95:FB:7C:D2
TYPE=Ethernet
#UUID=46ba3249-6460-48b8-8f47-71c302ce2dd0
ONBOOT=yes
NM_CONTROLLED=yes
#BOOTPROTO=static
#IPADDR=10.6.0.27
#NETMASK=255.255.255.0
#GATEWAY=10.6.0.1
BRIDGE=br0
[root@localhost ~]# vi /etc/sysconfig/network-scripts/ifcfg-br0
DEVICE=br0
HWADDR=E0:69:95:FB:7C:D2
TYPE=Bridge
UUID=46ba3249-6460-48b8-8f47-71c302ce2dd0
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=static
IPADDR=10.6.0.27
NETMASK=255.255.255.0
GATEWAY=10.6.0.1
ARPCHECK=no
[root@localhost ~]# service network restart
出现 ( 弹出界面 br0： Determining if ip address 10.6.0.27 is already in use for device br0...)
请在 br0 里面加上 ARPCHECK=no 选项
[root@localhost ~]# ifconfig
br0 Link encap:Ethernet HWaddr E0:69:95:FB:7C:D2
inet addr:10.6.0.27 Bcast:10.6.0.255 Mask:255.255.255.0
inet6 addr: fe80::e269:95ff:fefb:7cd2/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:345 errors:0 dropped:0 overruns:0 frame:0
TX packets:55 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:43982 (42.9 KiB) TX bytes:6656 (6.5 KiB)
eth0 Link encap:Ethernet HWaddr E0:69:95:FB:7C:D2
inet6 addr: fe80::e269:95ff:fefb:7cd2/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:396 errors:0 dropped:0 overruns:0 frame:0
TX packets:53 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:70198 (68.5 KiB) TX bytes:6560 (6.4 KiB)
Interrupt:20 Memory:fe500000-fe520000
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:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
virbr0 Link encap:Ethernet HWaddr 52:54:00:72:7D:E1
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:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
[root@localhost ~]# brctl show
bridge name bridge id STP enabled interfaces
br0 8000.e06995fb7cd2 no eth0
virbr0 8000.525400727de1 yes virbr0-nic
创建镜像存放目录
[root@localhost ~]# mkdir -p /opt/kvm/ios
创建虚拟机目录
[root@localhost ~]# mkdir -p /opt/kvm/images
创建一个50G qcow2格式的磁盘文件，虚拟机的image放在 /opt/kvm/images 目录下
[root@localhost ~]# qemu-img create -f qcow2 -o preallocation=metadata /opt/kvm/images/linux6.qcow2 50G
Formatting '/opt/kvm/images/linux6.qcow2', fmt=qcow2 size=53687091200 encryption=off cluster_size=65536 preallocation='metadata'
创建虚拟机 我们使用管理工具virt-install
virt-install --name=oracle6.5 --ram 2048 --vcpus=1 -f /opt/kvm/images/linux6.qcow2 --cdrom /opt/kvm/ios/oracle-linux-6.5.ios --network bridge=br0 --force --autostart
[root@localhost ~]# virt-install --name=oracle6.5 --ram 2048 --vcpus=1 -f /opt/kvm/images/linux6.qcow2 --cdrom /opt/kvm/ios/oracle-linux-6.5.ios --network bridge=br0 --force --autostart
开始安装......
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