Difference between revisions of "Installation on Debian"

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(described wheezy-test, well, kind of)
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This document briefly describes the steps needed to install OpenVZ on your Debian 7 "Wheezy" machine. For RHEL/Centos 6 based systems, please see [[Quick installation]].
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#REDIRECT [[Installation on Debian 9]]
 
 
{{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 Parallels Cloud Server and request a free trial, please see http://www.parallels.com/products/pcs/}}
 
 
 
== Requirements ==
 
 
 
This guide assumes you are running '''Debian 7 "Wheezy" ''' for '''AMD64''' on your system (x86 is not yet supported).
 
 
 
=== /vz file system ===
 
 
 
It is recommended to use a separate partition for containers (by default '''/var/lib/vz''') and format it to '''ext4'''.
 
 
 
=== apt pre-setup ===
 
 
 
{{Note|For more info about Debian repositories, see http://download.openvz.org/debian.}}
 
 
 
Run the following:
 
 
 
<pre><nowiki>cat << EOF > /etc/apt/sources.list.d/openvz-rhel6.list
 
deb http://download.openvz.org/debian wheezy main
 
# deb http://download.openvz.org/debian wheezy-test main
 
EOF</nowiki></pre>
 
 
 
{{Note|The second line with wheezy-test is commented out. This is a testing repo with newer kernels and possibly tools. Enable it if you want to stay on a bleeding edge of technology.}}
 
 
 
Import GPG key used for signing repository:
 
 
 
<pre><nowiki>wget http://ftp.openvz.org/debian/archive.key
 
apt-key add archive.key</nowiki></pre>
 
 
 
Update the local cache:
 
apt-get update
 
 
 
== Kernel installation ==
 
 
 
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.
 
 
 
# apt-get install linux-image-openvz-amd64
 
 
 
== System configuration ==
 
 
 
<!-- this is not yet in vzctl.deb
 
{{Note|With vzctl 4.6 or newer there is no need to do manual configuration. Skip to [[#Tools_installation]].}}
 
-->
 
 
 
Please make sure the following steps are performed before rebooting into OpenVZ kernel.
 
 
 
=== sysctl ===
 
 
 
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.
 
 
 
<pre>
 
# On Hardware Node we generally need
 
# packet forwarding enabled and proxy arp disabled
 
net.ipv4.ip_forward = 1
 
net.ipv6.conf.default.forwarding = 1
 
net.ipv6.conf.all.forwarding = 1
 
net.ipv4.conf.default.proxy_arp = 0
 
 
 
# Enables source route verification
 
net.ipv4.conf.all.rp_filter = 1
 
 
 
# Enables the magic-sysrq key
 
kernel.sysrq = 1
 
 
 
# We do not want all our interfaces to send redirects
 
net.ipv4.conf.default.send_redirects = 1
 
net.ipv4.conf.all.send_redirects = 0
 
</pre>
 
 
 
== Tools installation ==
 
 
 
{{Out|Before installing tools, please read about [[vzstats]] and opt-out if you don't want to help the project.}}
 
 
 
OpenVZ needs some user-level tools installed:
 
 
 
# apt-get install vzctl vzquota ploop vzstats
 
 
 
== Reboot into OpenVZ kernel ==
 
 
 
Now reboot the machine and choose an entry with word "openvz" in the boot loader menu (it should be default choice).
 
 
 
== Download OS templates ==
 
 
 
{{Note|this step is optional, vzctl is able to download templates on demand.}}
 
 
 
An OS template is a Linux distribution installed into a container
 
and then packed into a gzipped tarball. Using such a cache, a new container
 
can be created in a minute.
 
 
 
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 ==
 
 
 
OpenVZ is now set up on your machine. Follow on to [[basic operations in OpenVZ environment]] document.
 
 
 
[[Category: Installation]]
 
[[Category: HOWTO]]
 

Latest revision as of 19:39, 11 July 2017