1 [root@kvm-host ~]# grep -E 'vmx|svm' /proc/cpuinfo
注意:intel为vmx,amd为svm。
1 [root@kvm-host ~]# cat /proc/cpuinfo | grep name | cut -d: -f2 | uniq -c #CPU型号
2 4 Intel(R) Core(TM) i5-4690K CPU @ 3.50GHz
3 [root@kvm-host ~]# cat /proc/cpuinfo | grep physical | sort -n | uniq -c #CPU核数
2*2,即4核CPU。
1 [root@kvm-host ~]# dmidecode | grep -A16 "Memory Device" | grep Speed | sort -n | uniq -c #主频
配置好公共yum源,推荐网易yum源。
1 [root@kvm-host ~]# vi /etc/sysconfig/selinux
2 SELINUX=disabled
1 [root@kvm-host ~]# yum -y install qemu-kvm libvirt libvirt-python libguestfs-tools virt-install virt-manager
2 [root@kvm-host ~]# lsmod | grep kvm #验证kvm模块是否添加
3 kvm_intel 162153 0
4 kvm 525259 1 kvm_intel #配置软连接,便于管理。
1 [root@kvm-host ~]# systemctl enable libvirtd
2 [root@kvm-host ~]# systemctl start libvirtd
3 [root@kvm-host ~]# virsh -c qemu:///system list #查看虚拟机环境(virsh list --all)
4 Id Name State
5 ----------------------------------------------------
6 [root@kvm-host ~]# ln -s /usr/libexec/qemu-kvm /usr/bin/qemu-kvm
1 [root@kvm-host ~]# mkdir -p /data/images #存放kvm虚拟机目录
2 [root@kvm-host ~]# mkdir -p /data/iso #存放ISO镜像目录
1 [root@kvm-host ~]# vi /etc/sysconfig/network-scripts/ifcfg-eth0
2 NAME=eth0
3 DEVICE=eth0
4 ONBOOT=yes
5 BRIDGE=br0
6 [root@kvm-host ~]# vi /etc/sysconfig/network-scripts/ifcfg-br0
7 TYPE="Bridge"
8 BOOTPROTO=static
9 DEVICE="br0"
10 ONBOOT="yes"
11 DNS1=223.5.5.5
12 IPADDR=172.24.8.32
13 PREFIX=24
14 GATEWAY=172.24.8.2
15 DELAY="0"
16 [root@kvm-host ~]# vi /etc/sysctl.conf #修改sysctl.conf
17 net.ipv4.ip_forward=1
18 [root@kvm-host ~]# sysctl -p /etc/sysctl.conf
19 [root@kvm-host ~]# systemctl restart network #重启网卡服务
1 [root@kvm-host ~]# brctl show
2 bridge name bridge id STP enabled interfaces
3 br0 8000.000c29dd8149 no eth0
4 virbr0 8000.525400a5f00a yes virbr0-nic