KVM on CentOS 설치

KVM on CentOS

1. minimal install
2. yum update
3. yum groupinstall Virtualization*
4. yum -y groupinstall “Desktop” “Desktop Platform” “X Window System” “Fonts”
5. yum -y groupinstall “Graphical Administration Tools”

6. /etc/inittab

   init:5:default

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SETUP BRIDGE DEVICE ON CENTOS

Howto setup a bridge device on CentOS or Fedora. If you need to bring your KVM VM’s into the same local area network like your host is in you need to configure a bridge device.

• Install all needed packages:

  • yum install bridge-utils
     
    yum install tunctl

• Disable NetworkManager and enable network at boot time:

  • chkconfig NetworkManager off
     
    chkconfig –levels 35 network on
     
    /etc/init.d/NetworkManager stop
     
    /etc/init.d/network restart

• Create br0 configuration

  • vi /etc/sysconfig/network-scripts/ifcfg-br0

  • Change following configuration to your needs.

  • /etc/sysconfig/network-scripts/ifcfg-br0

    DEVICE=br0
    TYPE=Bridge
    BOOTPROTO=static
    DNS1=192.168.0.1
    GATEWAY=192.168.0.1
    IPADDR=192.168.0.100
    NETMASK=255.255.255.0
    ONBOOT=yes
    SEARCH=”example.com”

• Modify eth0 configuration:

  • vi /etc/sysconfig/network-scripts/ifcfg-eth0

  • /etc/sysconfig/network-scripts/ifcfg-eth0

    DEVICE=eth0
    HWADDR=00:1e:90:f3:f0:02
    ONBOOT=yes
    TYPE=Ethernet
    IPV6INIT=no
    USERCTL=no
    BRIDGE=br0

• Restart network or reboot machine

  • /etc/init.d/network restart
     
    or
     
    reboot

Here are some additional information on the libvirt page. If you have performance problems with your bridge device you maybe need to disable the netfilter on the bridge interface.

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Access To Libvirt Via Virt-Manager (Non-Root)

Access to anything using root passwords is a Bad Thing™, so Policy-Kit comes to the rescue. Having never used Policy-Kit (polkit-d), it was always something disabled in order to limit the number of extraneous processes running on a server/hypervisor system. However, in this case, it comes in handy.

• Create: /etc/polkit-1/localauthority/50-local.d/50-libvirt-remote-access.pkla

• /etc/polkit-1/localauthority/50-local.d/50-libvirt-remote-access.pkla

  [libvirt Management Access]
  Identity=unix-group:libvirt
  Action=org.libvirt.unix.manage
  ResultAny=yes
  ResultInactive=yes
  ResultActive=yes

From there, just make sure all of the VM admins are in the “libvirt” group.

출처 : http://jkt0620.blog.me/100209191516