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https://github.com/systemd/systemd.git
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141 lines
5.5 KiB
XML
141 lines
5.5 KiB
XML
<?xml version='1.0'?> <!--*-nxml-*-->
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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<!--
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This file is part of systemd.
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Copyright 2010 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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-->
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<refentry id="systemd-detect-virt"
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xmlns:xi="http://www.w3.org/2001/XInclude">
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<refentryinfo>
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<title>systemd-detect-virt</title>
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<productname>systemd</productname>
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<authorgroup>
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<author>
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<contrib>Developer</contrib>
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<firstname>Lennart</firstname>
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<surname>Poettering</surname>
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<email>lennart@poettering.net</email>
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</author>
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</authorgroup>
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</refentryinfo>
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<refmeta>
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<refentrytitle>systemd-detect-virt</refentrytitle>
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<manvolnum>1</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>systemd-detect-virt</refname>
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<refpurpose>Detect execution in a virtualized environment</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<cmdsynopsis>
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<command>systemd-detect-virt <arg choice="opt" rep="repeat">OPTIONS</arg></command>
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</cmdsynopsis>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para><command>systemd-detect-virt</command> detects
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execution in a virtualized environment. It identifies
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the virtualization technology and can distinguish full
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VM virtualization from container
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virtualization.</para>
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<para>When executed without <option>--quiet</option>
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will print a short identifier for the detected
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virtualization technology. The following technologies
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are currently identified: <varname>qemu</varname>,
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<varname>kvm</varname>, <varname>vmware</varname>,
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<varname>microsoft</varname>,
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<varname>oracle</varname>, <varname>xen</varname>,
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<varname>bochs</varname>, <varname>chroot</varname>,
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<varname>uml</varname>,
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<varname>openvz</varname>, <varname>lxc</varname>,
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<varname>lxc-libvirt</varname>,
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<varname>systemd-nspawn</varname>.</para>
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<para>If multiple virtualization solutions are used,
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only the "innermost" is detected and identified. That
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means if both VM virtualization and container
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virtualization are used in conjunction, only the latter
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will be identified (unless <option>--vm</option> is
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passed).</para>
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</refsect1>
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<refsect1>
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<title>Options</title>
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<para>The following options are understood:</para>
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<variablelist>
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<varlistentry>
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<term><option>-c</option></term>
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<term><option>--container</option></term>
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<listitem><para>Only detects container
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virtualization (i.e. shared kernel
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virtualization).</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>-v</option></term>
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<term><option>--vm</option></term>
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<listitem><para>Only detects VM
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virtualization (i.e. full hardware
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virtualization).</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>-q</option></term>
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<term><option>--quiet</option></term>
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<listitem><para>Suppress output of the
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virtualization technology
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identifier.</para></listitem>
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</varlistentry>
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<xi:include href="standard-options.xml" xpointer="help" />
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<xi:include href="standard-options.xml" xpointer="version" />
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</variablelist>
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</refsect1>
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<refsect1>
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<title>Exit status</title>
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<para>If a virtualization technology is detected, 0 is
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returned, a non-zero code otherwise.</para>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<para>
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<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>
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</para>
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</refsect1>
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</refentry>
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