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