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This article describes the procedure of an OS template cache creationpreparation. Is It assumes you already have OpenVZ installed and running. The steps needed to achieve it are documented in the [[Quick installation]] document. == Precreated templates == Use precreated templates taken from [http://openvz.org/download/template/cache Downloads » Templates » Precreated], or directly from [http://download.openvz.org/template/precreated/ download.openvz.org/template/precreated], or from one of the [[Download mirrors|mirrors]]. Precreated templates can be easily updated using the following algorithm:# create temporary [[container]] based on template# update [[container]] using OS-specific tools (yum, apt or similar)# pack [[container]] as a new templateExamples of this procedure are described in details at [[Updating Ubuntu template]], [[Updating Debian template]], [[Fedora template update]] In order to use precreated template cache files, download files for chosen OS distributions and place them as-is (no unpacking needed) to the <tt>/vz/template/cache</tt> directory (for Debian/Ubuntu it might be <tt>/var/lib/vz/template/cache</tt>). == Next step == Follow on to the [[container creation]] article. = Obsoleted: use template tools = {{Warning|The rest of this document is obsoleted and is kept here for historical purposes only. Template utilities (vzpkg/vzyum) are no longer supported. Use [[Download/template/precreated|precreated templates]].}}

Please make sure you understand these the following terms:.

* [[{{:OS template]]}}* [[{{:OS template metadata]]}}* [[{{:OS template cache]]}}

# yum install vzpkg vzyum vzrpm43-python vzrpm44-pythonvzctl-lib

Run the <tt>vzpkgcache</tt> utility; see the vzpkgcache(8) man page for details. It will create or update the caches of all the templates for which the corresponding metadata exist. Before cache creation be sure that you are set up all necessary locales for rpm (see [[Locales inside VE]]).

== Alternative: use precreated template cache == As an alternative to creating a cache using template metadata, you can use precreated template cache taken from [http://openvz.org/download/template/cache Downloads » Templates » Precreated], or directly from [http://download.openvz.org/template/precreated/ download.openvz.org/template/precreated], or from one of the [[Download mirrors|mirrors]]. However, this option is not recommended for production systems since without installing template metadata you will not be able to update your template cache. In order to use precreated template cache files, download files for chosen OS distributions and place them as-is (no unpacking needed) to the <tt>/vz/template/cache</tt> directory. NOTE: If you use precreated CentOS-4 templates and wish to install software using vzyum, you will probably run into error like this:  [root@localhost tmp]# vzyum MYVPSID install mypackage [root@localhost tmp]# ERROR: No such OS template: install To fix this, install the appropriate os template metadata on the OpenVZ host, for example  yum install vztmpl-vzpkgcache centos-4 == Next step ==-i386-minimal