How to encapsulate a virtual machine on a Red Hat Linux system with mirroring

650) this.width=650, "src=" Http://img.baidu.com/hi/jx2/j_0057.gif "alt=" J_0057.gif "/> Today share with everyone in Rhel (Red Hat Company's Linux system), how to encapsulate a virtual machine using mirroring.

First, have to have mirror, here you can see http://ucweb.blog.51cto.com/4042188/1001505 "teach you to get ISO image from Redhat official website"

Second, after downloading, to confirm that the ISO image error-free. You can use the Vitual Machine Manager (VM Manager) to automatically detect the following image installation version, which can be used.

(OS Type:linux

version:red Hat Enterprise Linux7.0)

Third, my real machine is the RHEL7.0 version, ready to encapsulate 3 6.5 versions of the virtual machine to use. Real Machine IP is 172.25.8.250

A yum repository on a real machine that builds a real machine:

Mount/iso/rhel-server-7.0-x86_64-dvd.iso/mnt temporarily hanging the 7.0 version of the image in the/mnt directory

Cd/etc/yum.repos.d/Entering the catalogue

Vim Yum.repo for editing

What to edit: [Yum]

Name=yum

Baseurl=file:///mnt

Gpgcheck=0

Yum Clean all refreshes the warehouse configuration

Yum install-y httpd Installation httpd

Systemctl Start httpd startup httpd

Systemctl Enable httpd boot httpd

Systemctl Stop Firewalld Close firewall

Systemctl Disable FIREWALLD boot does not start firewall

A yum repository for 6.5 virtual machines on a real machine

Mkdir/var/www/html/source

Mount/iso/rhel-server-6.5-x86_64-dvd.iso manually mounted to/var/www/html/source for use

Boot automatically mount writable/etc/fstab

Vim/etc/fstab

/iso/rhel-server-7.0-x86_64-dvd.iso/var/www/html/iso9660 ro,relatime 0 0

The meaning is: The image file hangs in the point type mount parameter not to be detected

Iv. Package version 6.5 virtual machine:

Use the 6.5 version of the image to do a rehel6.5-base first

1. Firewalls

Iptables-l View Firewall (-L is shorthand for--list to list rules)

Vim/etc/sysconfig/selinux kernel-level enhanced firewall modified to =disabled

/etc/init.d/iptables Stop Close Firewall

Iptables-l

Chkconfig--list iptables Displays the status information of the Iptables

CD ~

Rm-f *

CD/ETC/UDEV/RELES.D each file processes a series of rules to help udev assign names to device files to ensure that they are recognized by the kernel

Rm-f 70-persistent-net.rules

Cd/etc/sysconfig/network-scripts

2. Configure the network Vim/etc/sysconfig/network-scripts/ifcfg-eth0

What is written: device= "Eth0"

Bootproto= "None"

onboot= "Yes"

#IPADDR =172.25.8.1 in the same network segment as the real machine

#PREFIX = 24 (First # Note, after configuring the network configuration of 3 virtual machines, remove #)

3. Configure Yum

cd/etc/yum.repod/

Vim Yum.repo

What you wrote: [Yum]

Name=yum

Baseurl=http://172.25.8.250/source assigned to a 6.5-version warehouse built by the real machine

Gpgcheck=0

Enable=1

4.SSH, host name Mapping to IP,/etc/hosts

cd/etc/ssh/

Rm-f ssh_host_*

/etc/init.d/sshd restart

Vim/etc/sysconfig/network Edit/etc/sysconfig/network

What's written: server1.example.com

Vim/etc/hosts editing the hostname configuration file

172.25.8.1 server1.example.com hostname mapped to IP

172.25.8.2 server2.example.com hostname mapped to IP

172.25.8.3 server3.example.com hostname mapped to IP

Force the Rehel6.5-base virtual machine to be closed, delete deleted, delete associated storage files, and take the next snapshot.

5. Take a snapshot on the real machine

Cd/var/lib/libvirt/images

ll Rhel6.5-base.qcow2

Qemu-img create-f qcow2-brhel6.5-base.qcow2 Server1

Qemu-img create-f qcow2-brhel6.5-base.qcow2 Server2

Qemu-img create-f Qcow2-brhel6.5-base.qcow2 Server3

New virtual machine Server1 installation with/var/lib/libvirt/images/server1

New virtual machine Server2 installation with/var/lib/libvirt/images/server2

New virtual machine Server3 installation with/var/lib/libvirt/images/server3

After successful installation, in each virtual machine

Modify the respective host name Vim/etc/sysconfig/network

Modify the respective network configuration Vim/etc/sysconfig/network-scripts/ifcfg-eth0

Configure Yum.

Installing the Yum install-y ftp openssh-clients

True machine input command: SSH [email protected] for connection test

Note: Real machine/etc/hosts also need to have ' 172.25.8.1 server1.example.com ' hostname mapped to 3 local resolution of IP.

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How to encapsulate a virtual machine on a Red Hat Linux system with mirroring