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| − | <languages />
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| − | <translate>
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| − | <!--T:1-->
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| − | This document briefly describes the steps needed to install OpenVZ on your '''RHEL 6''' (CentOS 6, Scientific Linux 6) machine.
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| − | <!--T:2-->
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| − | For '''Debian''' based systems, please see [[Installation on Debian]].
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| − | <!--T:3-->
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| − | {{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/}}
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| − | <!--T:4-->
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| − | {{Out|If you want to try a new development version of [[Virtuozzo]] 7, check [[Quick installation of Virtuozzo 7]].}}
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| − | == Requirements == <!--T:5-->
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| − | <!--T:6-->
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| − | This guide assumes you are running '''RHEL (CentOS, Scientific Linux) 6''' on your system. Currently, this is a recommended platform to run OpenVZ on.
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| − | === /vz file system === <!--T:7-->
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| − | <!--T:8-->
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| − | It is recommended to use a separate partition for containers (by default '''/vz''') and format it to '''ext4'''.
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| − | === yum pre-setup === <!--T:9-->
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| − | <!--T:10-->
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| − | Download [http://ftp.openvz.org/openvz.repo openvz.repo] file and put it to your <code>/etc/yum.repos.d/</code> repository:
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| − | <!--T:11-->
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| − | <pre><nowiki>wget -P /etc/yum.repos.d/ http://ftp.openvz.org/openvz.repo</nowiki></pre>
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| − | <!--T:12-->
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| − | Import OpenVZ GPG key used for signing RPM packages:
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| − | <pre><nowiki>rpm --import http://ftp.openvz.org/RPM-GPG-Key-OpenVZ</nowiki></pre>
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| − | == Kernel installation == <!--T:14-->
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| − | <!--T:15-->
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| − | 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.
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| − | <!--T:16-->
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| − | # yum install vzkernel
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| − | == System configuration == <!--T:17-->
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| − | <!--T:18-->
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| − | {{Note|With vzctl 4.4 or newer there is no need to do manual configuration. Skip to [[#Tools_installation]].}}
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| − | <!--T:19-->
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| − | Please make sure the following steps are performed before rebooting into OpenVZ kernel.
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| − | === sysctl === <!--T:20-->
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| − | <!--T:21-->
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| − | 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.
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| − | <!--T:22-->
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| − | <pre>
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| − | # On Hardware Node we generally need
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| − | # packet forwarding enabled and proxy arp disabled
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| − | net.ipv4.ip_forward = 1
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| − | net.ipv6.conf.default.forwarding = 1
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| − | net.ipv6.conf.all.forwarding = 1
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| − | net.ipv4.conf.default.proxy_arp = 0
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| − | <!--T:23-->
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| − | # Enables source route verification
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| − | net.ipv4.conf.all.rp_filter = 1
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| − | <!--T:24-->
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| − | # Enables the magic-sysrq key
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| − | kernel.sysrq = 1
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| − | <!--T:25-->
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| − | # We do not want all our interfaces to send redirects
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| − | net.ipv4.conf.default.send_redirects = 1
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| − | net.ipv4.conf.all.send_redirects = 0
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| − | </pre>
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| − | === SELinux === <!--T:26-->
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| − | <!--T:27-->
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| − | SELinux should be disabled. Put <code>SELINUX=disabled</code> to <code>/etc/sysconfig/selinux</code>:
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| − | <!--T:28-->
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| − | echo "SELINUX=disabled" > /etc/sysconfig/selinux
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| − | == Tools installation == <!--T:29-->
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| − | <!--T:30-->
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| − | {{Out|Before installing tools, please read about [[vzstats]] and opt-out if you don't want to help the project.}}
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| − | <!--T:31-->
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| − | OpenVZ needs some user-level tools installed:
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| − | <!--T:32-->
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| − | # yum install vzctl vzquota ploop
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| − | == Reboot into OpenVZ == <!--T:33-->
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| − | <!--T:34-->
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| − | Now reboot the machine and choose "OpenVZ" on the boot loader menu (it should be default choice).
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| − | == Download OS templates == <!--T:35-->
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| − | <!--T:36-->
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| − | An OS template is a Linux distribution installed into a container
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| − | and then packed into a gzipped tarball. Using such a cache, a new container
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| − | can be created in a minute.
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| − | <!--T:37-->
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| − | 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.
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| − | == Next steps == <!--T:38-->
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| − | <!--T:39-->
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| − | OpenVZ is now set up on your machine. Follow on to [[basic operations in OpenVZ environment]] document.
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| − | </translate>
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| − | [[Category: Installation]]
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| − | [[Category: HOWTO]]
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