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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
- "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
<!--
This file is part of systemd.
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>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 id="systemd-detect-virt"
+ xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <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. <filename>systemd-detect-virt</filename>
+ exits with a return value of 0 (success) if a virtualization
+ technology is detected, and non-zero (error) otherwise. By default
+ any type of virtualization is detected, and the options
+ <option>--container</option> and <option>--vm</option> can be used
+ to limit what types of virtualization are detected.</para>
+
+ <para>When executed without <option>--quiet</option> will print a
+ short identifier for the detected virtualization technology. The
+ following technologies are currently identified:</para>
+
+ <table>
+ <title>Known virtualization technologies (both
+ VM, i.e. full hardware virtualization,
+ and container, i.e. shared kernel virtualization)</title>
+ <tgroup cols='3' align='left' colsep='1' rowsep='1'>
+ <colspec colname="type" />
+ <colspec colname="id" />
+ <colspec colname="product" />
+ <thead>
+ <row>
+ <entry>Type</entry>
+ <entry>ID</entry>
+ <entry>Product</entry>
+ </row>
+ </thead>
+ <tbody>
+ <row>
+ <entry morerows="8">VM</entry>
+ <entry><varname>qemu</varname></entry>
+ <entry>QEMU software virtualization</entry>
+ </row>
+
+ <row>
+ <entry><varname>kvm</varname></entry>
+ <entry>Linux KVM kernel virtual machine</entry>
+ </row>
+
+ <row>
+ <entry><varname>zvm</varname></entry>
+ <entry>s390 z/VM</entry>
+ </row>
+
+ <row>
+ <entry><varname>vmware</varname></entry>
+ <entry>VMware Workstation or Server, and related products</entry>
+ </row>
+
+ <row>
+ <entry><varname>microsoft</varname></entry>
+ <entry>Hyper-V, also known as Viridian or Windows Server Virtualization</entry>
+ </row>
+
+ <row>
+ <entry><varname>oracle</varname></entry>
+ <entry>Oracle VM VirtualBox (historically marketed by innotek and Sun Microsystems)</entry>
+ </row>
+
+ <row>
+ <entry><varname>xen</varname></entry>
+ <entry>Xen hypervisor (only domU, not dom0)</entry>
+ </row>
+
+ <row>
+ <entry><varname>bochs</varname></entry>
+ <entry>Bochs Emulator</entry>
+ </row>
+
+ <row>
+ <entry><varname>uml</varname></entry>
+ <entry>User-mode Linux</entry>
+ </row>
+
+ <row>
+ <entry morerows="5">container</entry>
+ <entry><varname>openvz</varname></entry>
+ <entry>OpenVZ/Virtuozzo</entry>
+ </row>
+
+ <row>
+ <entry><varname>lxc</varname></entry>
+ <entry>Linux container implementation by LXC</entry>
+ </row>
+
+ <row>
+ <entry><varname>lxc-libvirt</varname></entry>
+ <entry>Linux container implementation by libvirt</entry>
+ </row>
+
+ <row>
+ <entry><varname>systemd-nspawn</varname></entry>
+ <entry>systemd's minimal container implementation, see <citerefentry><refentrytitle>systemd-nspawn</refentrytitle><manvolnum>1</manvolnum></citerefentry></entry>
+ </row>
+
+ <row>
+ <entry><varname>docker</varname></entry>
+ <entry>Docker container manager</entry>
+ </row>
+ </tbody>
+ </tgroup>
+ </table>
+
+ <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>-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>
+
+ <xi:include href="standard-options.xml" xpointer="help" />
+ <xi:include href="standard-options.xml" xpointer="version" />
+ </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>,
+ <citerefentry><refentrytitle>systemd-nspawn</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ </para>
+ </refsect1>
</refentry>
~ianmdlvl / elogind.git / blobdiff