KVM Virtulization Installation and Configuration in Run level 3

KVM Virtulization in CentOS6 / RHEL 6 -----

Installation -----

Prerequsites -----

> AMD / Intel 64 Bit Process with Virtulization technology enable.
> 4 GB Minimum RAM
> Installed one CentOS bit64 Version 6.X or RHEL 6.X server on Base / Minimu level.
> One Static IP address

Note :-  Installation KVM documnet assum that YUM Repository is allready configured on network.

Steps to install -----

> Loging to the server with root user or use sudo rights to install KVM packages.
Command :- #yum -y install qemu-kvm libvirt python-virtinst bridge-utils


> Run the following command to make sure KVM packages install properly.
Command :- #lsmod | grep kvm
Result will display as per the following screen.


> Start the libvirtd service.
Command :- #/etc/rc.d/init.d/libvirtd start
                                         or
                      #service libvirtd start

 

> Start the messagebus service
Command :- #/etc/rc.d/init.d/messagebus start

 > Enabled both the services in linux boot process.
Command :- #chkconfig libvirtd on
                       #chkconfig messagebus on


Configure Bridge Network for KVM Virtual Machines -----


> Move ifcfg-eth0 file to ifcfg-br0 file.
Command :- #mv /etc/sysconfig/network-scripts/ifcfg-eth0 /etc/sysconfig/network-scripts/ifcfg-br0

>Edit the ifcfg-br0 file and do the follwoing changes in the file.
Command :- #cd /etc/sysconfig/network-scripts/  ------ Go to network-scripts directory.
                      #vi ifcfg-br0                                      ------ Edit the ifcfg-br0 file with vi editor
Do the changes in the file -----

DEVICE=br0
TYPE=Bridge
NM_CONTROLLED=no 

:wq  ----- Save the file and exit.



> Create new file ifcfg-eth0 and add the following configuration details.
Command :- #vi /etc/sysconfig/network-scripts/ifcfg-eth0   ----- Create new file with vi editor
DEVICE=eth0
TYPE=Ethernet
ONBOOT=Yes
BRIDGE=br0

:wq  ----- Save the file and exit.

> Disabled Seleinux
Comamnd :- #vi /etc/selinux/config   ----- Edit the config file and disabled SELINUX

:wq ----- Save and exit.

> Disabled Linux Firewall / iptables.

Command :- #service iptables stop           ------ Stop iptables services
                      #chkconfig iptables off         ------ Off the service in linuix boot.

> Sart Bridge network.
Command :- #ifup br0 

> Restart Network services
Command :- #service network restart

Once Network configured properly you will get following screen.


EOF


Comments

Post a Comment

Popular posts from this blog

KVM Live Migration without Shared Storage

Image
KVM Guest VM Live Migration without Share Storage ----- Prerequisites ----- > Ruining Guest virtual machine on one of the KVM Host server. > Both the KVM Host servers are able accessible each other. > 1 Gbps Network configured on both the Host servers > Longing to the host servers with root user or normal user have sudo rights. > Make sure ssh service port is enabled on both the host and firewall. Steps to migrate gust vm ----- > Assume Guest VM runing on KVM Host1 ( I have give cls1 hostname to KVM Host1 and cls2 hostname to KVM Host 2 ) List the virtual machines ruining on cls1 server. Command :- # virsh list          ----- This command display the runing virtual machines on the host Name :- virt1      ----- This is ruining virtual machine ID :-  1               ----- This is first virtual machine on the host. > Check the virtual machine size. Note :- In this scenario I have used default storage path /var/lib/libvirt/images Command :-
Read more

Create CentOS 6 Local package and Group package Repository

Image
Create CentOS 6 Local package and Group package Repository. Prerequisites: > CentOS 6 .iso file or DVD. > Installed CentOS 6.5 / 6.6 x86_64 server with minimum 40 GB free disk space on / partition. > Make sure Internet is enabled on Linux server to download and install few packages. Steps to create Local package repository:  > Copy CentOS 6.5 .iso file in Linux Centos 6 x86_64 server on / partition. > Mount CentOS 6.5 .iso file ( CentOS-6.5-x86_64-bin-DVD1.iso ) to /mnt directory Command: # mount -t iso9660 -o loop /CentOS-6.5-x86_64-bin-DVD1.iso /mnt  > Install HTTP service on Linux server. Command: # yum install httpd > Start HTTP service . Command: # service httpd restart > Create Directory centos65 in /var/www/html/  Command: # mkdir /var/www/html/centos65 >  Go to /mnt/Packages directory Command: # cd /mnt/Packages > Copy all the files from Packages directory to /var/www/html/centos65/ directory. Comman
Read more

Create Linux ( LUCI ) Cluster

Image
Create Linux Cluster ----- Prerequisites ----- > Install CentOS 6 / RHEL 6 nodes ( Machines ) with same hardware configuration. > Minimum 2 nodes are required > Configure Linux installable YUM Repository on both the nodes. URL :- http://sappyit.blogspot.in/2014/12/create-local-yum-repository-in-rhel7.html  > Configured static IPs to both the nodes. > Both the nodes are in same network and able to ping each other. Steps to install Cluster service ----- > Disable Selinux settings on both the nodes. Command :- # cd /etc/selinux                       #vi config                     ----- Edit Selinux config file with vi editor.                      SELINUX= disabled      ----- Disabled selinux settings in the file.                     :wq                                 ----- Save and exit the file.       Restart both the nodes if required. > Disable Linux firewall / Iptables in both the nodes. Command :- # service iptables stop            
Read more