<citerefentry project='die-net'><refentrytitle>yum</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry project='die-net'><refentrytitle>debootstrap</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
or
- <citerefentry project='arch'><refentrytitle>pacman</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+ <citerefentry project='archlinux'><refentrytitle>pacman</refentrytitle><manvolnum>8</manvolnum></citerefentry>
to set up an OS directory tree suitable as file system
hierarchy for <command>systemd-nspawn</command>
containers.</para>
versa). Takes one of
<literal>no</literal>,
<literal>host</literal>,
+ <literal>try-host</literal>,
<literal>guest</literal>,
+ <literal>try-guest</literal>,
<literal>auto</literal>. If
<literal>no</literal>, the journal is
not linked. If <literal>host</literal>,
guest file system (beneath
<filename>/var/log/journal/<replaceable>machine-id</replaceable></filename>)
and the subdirectory is symlinked into the host
- at the same location. If
- <literal>auto</literal> (the default),
+ at the same location. <literal>try-host</literal>
+ and <literal>try-guest</literal> do the same
+ but do not fail if the host does not have
+ persistant journalling enabled.
+ If <literal>auto</literal> (the default),
and the right subdirectory of
<filename>/var/log/journal</filename>
exists, it will be bind mounted
<term><option>-j</option></term>
<listitem><para>Equivalent to
- <option>--link-journal=guest</option>.</para></listitem>
+ <option>--link-journal=try-guest</option>.</para></listitem>
</varlistentry>
<varlistentry>
as <literal>tmpfs</literal> instance
into it (the system thus starts up
with read-only OS resources and
- configuration, but prestine state, any
+ configuration, but pristine state, any
changes to the latter are lost on
shutdown). When the mode parameter is
specified as <literal>no</literal>
</refsect1>
<refsect1>
- <title>Example 1</title>
+ <title>Examples</title>
+ <example>
+ <title>Boot a minimal Fedora distribution in a container</title>
- <programlisting># yum -y --releasever=19 --nogpg --installroot=/srv/mycontainer --disablerepo='*' --enablerepo=fedora install systemd passwd yum fedora-release vim-minimal
+
<programlisting># yum -y --releasever=19 --nogpg --installroot=/srv/mycontainer --disablerepo='*' --enablerepo=fedora install systemd passwd yum fedora-release vim-minimal
# systemd-nspawn -bD /srv/mycontainer</programlisting>
- <para>This installs a minimal Fedora distribution into
- the directory <filename noindex='true'>/srv/mycontainer/</filename> and
- then boots an OS in a namespace container in
- it.</para>
- </refsect1>
+
<para>This installs a minimal Fedora distribution into
+ the directory <filename noindex='true'>/srv/mycontainer/</filename> and
+ then boots an OS in a namespace container in
+ it.</para>
+ </example>
- <refsect1>
- <title>Example 2</title>
+ <example>
+ <title>Spawn a shell in a container of a minimal Debian unstable distribution</title>
- <programlisting># debootstrap --arch=amd64 unstable ~/debian-tree/
+
<programlisting># debootstrap --arch=amd64 unstable ~/debian-tree/
# systemd-nspawn -D ~/debian-tree/</programlisting>
- <para>This installs a minimal Debian unstable
- distribution into the directory
- <filename>~/debian-tree/</filename> and then spawns a
- shell in a namespace container in it.</para>
- </refsect1>
+
<para>This installs a minimal Debian unstable
+ distribution into the directory
+ <filename>~/debian-tree/</filename> and then spawns a
+ shell in a namespace container in it.</para>
+ </example>
- <refsect1>
- <title>Example 3</title>
+ <example>
+ <title>Boot a minimal Arch Linux distribution in a container</title>
- <programlisting># pacstrap -c -d ~/arch-tree/ base
+
<programlisting># pacstrap -c -d ~/arch-tree/ base
# systemd-nspawn -bD ~/arch-tree/</programlisting>
- <para>This installs a mimimal Arch Linux distribution into
- the directory <filename>~/arch-tree/</filename> and then
- boots an OS in a namespace container in it.</para>
- </refsect1>
+
<para>This installs a mimimal Arch Linux distribution into
+ the directory <filename>~/arch-tree/</filename> and then
+ boots an OS in a namespace container in it.</para>
+ </example>
- <refsect1>
- <title>Example 4</title>
+ <example>
+ <title>Enable Arch Linux container on boot</title>
- <programlisting># mv ~/arch-tree /var/lib/container/arch
+
<programlisting># mv ~/arch-tree /var/lib/container/arch
# systemctl enable systemd-nspawn@arch.service
# systemctl start systemd-nspawn@arch.service</programlisting>
- <para>This makes the Arch Linux container part of the
- <filename>multi-user.target</filename> on the host.
- </para>
- </refsect1>
+
<para>This makes the Arch Linux container part of the
+ <filename>multi-user.target</filename> on the host.
+ </para>
+ </example>
- <refsect1>
- <title>Example 5</title>
+ <example>
+ <title>Boot into a btrfs snapshot of the host system</title>
- <programlisting># btrfs subvolume snapshot / /.tmp
+
<programlisting># btrfs subvolume snapshot / /.tmp
# systemd-nspawn --private-network -D /.tmp -b</programlisting>
- <para>This runs a copy of the host system in a
- btrfs snapshot.</para>
- </refsect1>
+
<para>This runs a copy of the host system in a
+ btrfs snapshot.</para>
+ </example>
- <refsect1>
- <title>Example 6</title>
+ <example>
+ <title>Run a container with SELinux sandbox security contexts</title>
- <programlisting># chcon system_u:object_r:svirt_sandbox_file_t:s0:c0,c1 -R /srv/container
+
<programlisting># chcon system_u:object_r:svirt_sandbox_file_t:s0:c0,c1 -R /srv/container
# systemd-nspawn -L system_u:object_r:svirt_sandbox_file_t:s0:c0,c1 -Z system_u:system_r:svirt_lxc_net_t:s0:c0,c1 -D /srv/container /bin/sh</programlisting>
-
- <para>This runs a container with SELinux sandbox security contexts.</para>
+ </example>
</refsect1>
<refsect1>
<citerefentry project='man-pages'><refentrytitle>chroot</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry project='die-net'><refentrytitle>yum</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry project='die-net'><refentrytitle>debootstrap</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
- <citerefentry project='arch'><refentrytitle>pacman</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
+ <citerefentry project='archlinux'><refentrytitle>pacman</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.slice</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>machinectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
</para>
~ianmdlvl / elogind.git / blobdiff