3. Xen virtual machine replication

The idea of replicating a virtual machine:

Copy the virtual machine disk file img first

Copying the configuration file / etc/xen of the virtual machine

Modify the configuration file, hostname and network card information of the replication virtual machine

1. View the configuration file of an existing virtual machine

1) location of virtual machine configuration file / etc/xen/dd

2) Virtual Machine Profil

# cat / etc/xen/dd

two。 Copy xen virtual machine disk files

# cp / data/dd.img / data/dd2.img is a bit long. It has something to do with your local hard drive Icano.

3. Copy and modify new virtual machine configuration files

# cd / etc/xen/

# cp dd dd2

# vi dd2

# modify instructions:

(1) modify name to a new virtual machine name

(2) uuid changes the last few data.

(3) change the disk to the actual path.

(4) vif modifies the MAC address of the network card to change the last few data

4. Start a new virtual machine and modify the hostname and IP address

(1) start the virtual machine

You can see that the dd2 virtual machine has been started.

(2) console enters the virtual machine

# xm console dd2

Startup process: mine failed

Virt-manager &

The password of root is the password of the dd virtual machine before replication

(3) modify the host name of the virtual machine

# vi / etc/hosts

# vi / etc/sysconfig/network

Restart

Reboot

(4) modify the IP address of virtual machine

The network card has no information at all.

Find the mac address of the network card through the console

Modify MAC address and IP address

Restart the network card

Service network restart

If not, delete the following file

Cd / etc/udev/rules.d

Ll

Delete the files inside

Restart the virtual machine

Root

Or restart the network card

# cat / etc/sysconfig/network-script/ifcfg-eth0