1. 查看系統版本
[root@openstack ~]# cat /etc/centos-release
CentOS Linux release 7.4.1708 (Core)
2. 首先驗證CPU是否支持虛擬化
[root@openstack ~]# cat /proc/cpuinfo | egrep 'vmx|svm'
3. 查看是否加載KVM
[root@openstack ~]# lsmod | grep kvm
kvm_intel 170086 0
kvm 566340 1 kvm_intel
irqbypass 13503 1 kvm
這表明已經加載,如果沒有加載則執行以下命令加載KVM
[root@openstack ~]# modprobe kvm
4. 關閉selinux
[root@openstack ~]# setenforce 0
[root@openstack ~]# vim /etc/sysconfig/selinux
SELINUX=disabled
5. 安裝KVM相關軟件包
[root@openstack ~]# yum install qemu-kvm qemu-img virt-manager libvirt libvirt-python virt- manager libvirt-client virt-install virt-viewer -y
6. 啓動libvirt並設置開機自啓動
[root@openstack ~]# systemctl start libvirtd
[root@openstack ~]# systemctl enable libvirtd
7. 實施SR-IOV功能,添加intel_iommu=on
[root@localhost ~]# vim /etc/default/grub
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="crashkernel=auto rd.lvm.lv=centos/root rd.lvm.lv=centos/swap rhgb quiet intel_iommu=on"
GRUB_DISABLE_RECOVERY="true"
[root@localhost ~]# grub2-mkconfig -o /boot/grub2/grub.cfg
8. 安裝虛擬機
新建兩個目錄:
[root@openstack ~]# mkdir /home/iso
[root@openstack ~]# mkdir /home/images
1) 進入圖形化
[root@openstack ~]# virt-manager