kvm安装和网桥配置
1.查看机器是否支持虚拟化
egrep 'vmx|svm' --color=always /proc/cpuinfo
grep -E 'vmx|svm' /proc/cpuinfo
egrep "vmx |svm" /proc/cpuinfo
2 进入bios,cpu设置,开启虚拟技术支持
3 安装kvm
yum -y install kvm
4 安装额外的虚拟化管理软件
yum -y install virt-manager libvirt libvirt-python python-virtinst
5 查看kvm是否安装成功
#modprobe kvm
#modprobe kvm-amd
#modprobe kvm-intel
(1)lsmod|grep kvm
kvm-intel 86248 3
kvm 223264 1 kvm_intel
(2)stat /dev/kvm
6配置网络
cd /etc/sysconfig/network-scripts/
cp ifcfg-eth0 baketh0
cp ifcfg-eth0 ifcfg-br0
静态
vi ifcfg-eth0
DEVICE=eth0
TYPE=Ethernet
HWADDR=00:14:5E:C2:1E:40
ONBOOT=yes
NM_CONTROLLED=no
BRIDGE=br0
vi ifcfg-br0
DEVICE=br0
TYPE=Bridge
NM_CONTROLLED=no
BOOTPROTO=static
IPADDR=192.168.1.33
NETMASK=255.255.255.0
GATEWAY=192.168.1.1
ONBOOT=yes
动态
vi ifcfg-eth0
DEVICE=eth0
TYPE=Ethernet
HWADDR=00:14:5E:C2:1E:40
ONBOOT=yes
NM_CONTROLLED=no
BRIDGE=br0
vi ifcfg-br0
DEVICE=br0
TYPE=Bridge
NM_CONTROLLED=no
BOOTPROTO=dhcp
ONBOOT=yes
service network restart
查看网桥
brctl show
bridge name bridge id STP enabled interfaces
br0 8000.00e0b6047dcc no eth0
virbr0 8000.525400e56f63 yes virbr0-nic