Installation guide

Managing EZ Templates

Converting Containers Based on Standard

Templates

You can use the vzveconvert utility to convert your existing Containers based on standard OS

templates (and possibly having a number of standard application templates applied to them) to the

EZ template-based ones. Let us assume that you wish to transform Container 101 based on the

fedora-core-3 standard OS template and having the psa-fc3 standard application template

applied to it and make it use the corresponding EZ templates: the fedora-core-4-x86 OS and

the plesk8 application EZ templates. To this effect, you can issue the following command on the

Hardware Node:

Note: You are highly recommended to back up a Container before starting to convert it.

# vzveconvert 101

During the command execution, the following main operations are performed:

1 The vzveconvert utility checks if the fedora-core-4-x86 EZ OS template and the

plesk8 EZ application templates are installed on the Hardware Node. If any of these EZ

templates cannot be found on the Node, the command will fail.

2 The pre-fedora-core-4 script located in the /usr/share/vztt/convert/scripts

directory on the Hardware Node is executed. This script is meant to perform a number of pre-

upgrade operations in the Container context.

3 The packages comprising the fedora-core-3 standard OS template and the psa-fc3

standard application template are compared with those available in the repositories for the

fedora-core-4-x86 EZ OS template and the plesk8 EZ application template and if any

updates are available, they are downloaded to the Hardware Node and installed there. You can

also pass the -C option to the command to make vzveconvert look for the packages

updates in the vzpkg cache only.

4 The packages that are included in the fedora-core-3 and the psa-fc3 standard templates

and that cannot be found in the repositories for the fedora-core-4-x86 and plesk8 EZ

templates, if any, are copied to the /vz/template/vc/<UUID>/<rpm_name> directory on

the Node where <UUID> denotes the unique identifier of the Container (you can find out what

unique ID is assigned to the Container by viewing the value of the UUID parameter in the

Container configuration file after the vzveconvert execution) and <rpm_name> is the name

of the package (together with its version, release, and architecture) absent from the EZ template

repositories.