002.KVM环境部署

  1 [root@kvm-host ~]# grep -E ‘vmx|svm‘ /proc/cpuinfo

  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

  1 [root@kvm-host ~]# dmidecode | grep -A16 "Memory Device" | grep Speed | sort -n | uniq -c		#主频

  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