KVM Virtualization Learning Notes (1) Installing the KVM Hypervisor

1. Configure the hypervisor

(1) Check whether VMS are supported

Note 1: You cannot run and install KVM VMS in paravirtualization.

[root@MySQL ~]# egrep '(vmx|svm)' --color=always /proc/cpuinfo
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(2) Install the KVM software package

[root@MySQL ~]# yum -y install kvm python-virtinst libvirt tunctl bridge-utils virt-manager qemu-kvm-tools virt-viewer virt-v2v libguestfs-tools
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2. View the hypervisor

(1) Check the VM environment

[root@MySQL ~]# /etc/init.d/libvirtd start
[root@MySQL ~]# virsh -c qemu:///system list
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(2) Check the KVM module support

[root@MySQL ~]# lsmod | grep kvm
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(3) View the virtual tool version

[root@MySQL ~]# virsh --version
[root@MySQL ~]# virt-install --version
[root@MySQL ~]# ln -s /usr/libexec/qemu-kvm /usr/bin/qemu-kvm
[root@MySQL ~]# qemu-kvm -version
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3. Configure a virtual bridge

(1) Disable the NetworkManager service

[root@MySQL ~]# /etc/init.d/NetworkManager stop
[root@MySQL ~]# chkconfig NetworkManager off
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(2) Create br0 bridge

[root@MySQL ~]# cd /etc/sysconfig/network-scripts/
[root@MySQL network-scripts]# cp ifcfg-eth0 ifcfg-br0
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(3) Service Networkr Estart can be used to manage the network only after the NetworkManager service is disabled.

(4) Check bridge BR0

[root@MySQL network-scripts]# ifconfig
[root@MySQL network-scripts]# brctl show
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