<languages /><translate> <!--T:1-->This document briefly describes the steps needed to install OpenVZ on your '''RHEL 6''' (CentOS 6, Scientific Linux 6) machine. <!--T:2-->For '''Debian''' based systems, please see [[Installation on Debian]]. <!--T:3-->{{Out|A commercial version of OpenVZ is available, which simplifies installation with a single disk as well as supports networked installation using PXE boot. To learn more about Virtuozzo and request a free trial, please see http://www.odin.com/products/virtuozzo/}} <!--T:4-->{{Out|If you want to try a new development version of [[Virtuozzo]] 7, check [[Quick installation of Virtuozzo 7]].}} == Requirements == <!--T:5--> <!--T:6-->This guide assumes you are running '''RHEL (CentOS, Scientific Linux) 6''' on your system. Currently, this is a recommended platform to run OpenVZ on. === /vz file system === <!--T:7--> <!--T:8-->It is recommended to use a separate partition for containers (by default '''/vz''') and format it to '''ext4'''. === yum pre-setup === <!--T:9--> <!--T:10-->Download [http://ftp.openvz.org/openvz.repo openvz.repo] file and put it to your <code>/etc/yum.repos.d/</code> repository: <!--T:11--><pre><nowiki>wget -P /etc/yum.repos.d/ http://ftp.openvz.org/openvz.repo</nowiki></pre> <!--T:12-->Import OpenVZ GPG key used for signing RPM packages: <!--T:13--><pre><nowiki>rpm --import http://ftp.openvz.org/RPM-GPG-Key-OpenVZ</nowiki></pre> == Kernel installation == <!--T:14--> <!--T:15-->Limited OpenVZ functionality is supported when you run a recent 3.x kernel (check [[vzctl for upstream kernel]], so OpenVZ kernel installation is optional but still recommended. <!--T:16--># yum install vzkernel == System configuration == <!--T:17--> <!--T:18-->{{Note|With vzctl 4.4 or newer there is no need to do manual configuration. Skip to [[#Tools_installation]].}} <!--T:19-->Please make sure the following steps are performed before rebooting into OpenVZ kernel. === sysctl === <!--T:20--> <!--T:21-->There are a number of kernel parameters that should be set for OpenVZ to work correctly. These parameters are stored in <tt>/etc/sysctl.conf</tt> file. Here are the relevant portions of the file; please edit accordingly. <!--T:22--><pre># On Hardware Node we generally need# packet forwarding enabled and proxy arp disablednet.ipv4.ip_forward = 1net.ipv6.conf.default.forwarding = 1net.ipv6.conf.all.forwarding = 1net.ipv4.conf.default.proxy_arp = 0 <!--T:23--># Enables source route verificationnet.ipv4.conf.all.rp_filter = 1 <!--T:24--># Enables the magic-sysrq keykernel.sysrq = 1 <!--T:25--># We do not want all our interfaces to send redirectsnet.ipv4.conf.default.send_redirects = 1net.ipv4.conf.all.send_redirects = 0</pre> === SELinux === <!--T:26--> <!--T:27-->SELinux should be disabled. Put <code>SELINUX=disabled</code> to <code>/etc/sysconfig/selinux</code>: <!--T:28-->echo "SELINUX=disabled" > /etc/sysconfig/selinux == Tools installation == <!--T:29--> <!--T:30-->{{Out|Before installing tools, please read about [[vzstats]] and opt-out if you don't want to help the project.}} <!--T:31-->OpenVZ needs some user-level tools installed: <!--T:32--># yum install vzctl vzquota ploop == Reboot into OpenVZ == <!--T:33--> <!--T:34-->Now reboot the machine and choose "OpenVZ" on the boot loader menu (it should be default choice). == Download OS templates == <!--T:35--> <!--T:36-->An OS template is a Linux distribution installed into a containerand then packed into a gzipped tarball. Using such a cache, a new containercan be created in a minute. <!--T:37-->Download precreated template caches 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]]. Put those tarballs '''as-is (no unpacking needed)''' to the <tt>/vz/template/cache/</tt> directory. == Next steps == <!--T:38--> <!--T:39-->OpenVZ is now set up on your machine. Follow on to [[basic operations in OpenVZ environment]] document. </translate> [[Category: Installation]][[Category: HOWTO]]dfghj