chiark / gitweb /
man: document systemd-journald.conf(5)
[elogind.git] / man / systemctl.xml
index 5adee45163b3bcc61c9585ef2fb9878ec24e8290..3266333be1b41b80174508f2758c4a2941780740 100644 (file)
                                 <command>halt</command>,
                                 <command>poweroff</command>,
                                 <command>reboot</command> or
-                                <command>kexec</command> execute
+                                <command>kexec</command> execute the
                                 selected operation without shutting
                                 down all units. However, all processes
                                 will be killed forcibly and all file
                                 systems are unmounted or remounted
                                 read-only. This is hence a drastic but
                                 relatively safe option to request an
-                                immediate reboot.</para></listitem>
+                                immediate reboot. If
+                                <option>--force</option> is specified
+                                twice for these operations, they will
+                                be executed immediately without
+                                terminating any processes or umounting
+                                any file systems. Warning: specifying
+                                <option>--force</option> twice with
+                                any of these operations might result
+                                in data loss.</para></listitem>
                         </varlistentry>
 
                         <varlistentry>
                                 system. This is mostly equivalent to
                                 <command>start halt.target</command>
                                 but also prints a wall message to all
-                                users.  If
-                                combined with <option>--force</option>
-                                shutdown of all running services is
-                                skipped, however all processes are killed
-                                and all file systems are unmounted or
+                                users.  If combined with
+                                <option>--force</option> shutdown of
+                                all running services is skipped,
+                                however all processes are killed and
+                                all file systems are unmounted or
                                 mounted read-only, immediately
-                                followed by the
-                                system halt.</para></listitem>
+                                followed by the system halt.  If
+                                <option>--force</option> is specified
+                                twice the the operation is immediately
+                                executed without terminating any
+                                processes or unmounting any file
+                                systems. This may result in data
+                                loss.</para></listitem>
                         </varlistentry>
                         <varlistentry>
                                 <term><command>poweroff</command></term>
                                 power-off the system. This is mostly
                                 equivalent to <command>start
                                 poweroff.target</command> but also
-                                prints a wall message to all
-                                users. If
+                                prints a wall message to all users. If
                                 combined with <option>--force</option>
                                 shutdown of all running services is
-                                skipped, however all processes are killed
-                                and all file systems are unmounted or
-                                mounted read-only, immediately
-                                followed by the
-                                powering off.</para></listitem>
+                                skipped, however all processes are
+                                killed and all file systems are
+                                unmounted or mounted read-only,
+                                immediately followed by the powering
+                                off. If <option>--force</option> is
+                                specified twice the the operation is
+                                immediately executed without
+                                terminating any processes or
+                                unmounting any file systems. This may
+                                result in data loss.</para></listitem>
                         </varlistentry>
                         <varlistentry>
                                 <term><command>reboot</command></term>
 
-                                <listitem><para>Shut down and
-                                reboot the system. This is mostly
-                                equivalent to <command>start
+                                <listitem><para>Shut down and reboot
+                                the system. This is mostly equivalent
+                                to <command>start
                                 reboot.target</command> but also
-                                prints a wall message to all
-                                users. If
+                                prints a wall message to all users. If
                                 combined with <option>--force</option>
                                 shutdown of all running services is
-                                skipped, however all processes are killed
-                                and all file systems are unmounted or
-                                mounted read-only, immediately
-                                followed by the
-                                reboot.</para></listitem>
+                                skipped, however all processes are
+                                killed and all file systems are
+                                unmounted or mounted read-only,
+                                immediately followed by the reboot. If
+                                <option>--force</option> is specified
+                                twice the the operation is immediately
+                                executed without terminating any
+                                processes or unmounting any file
+                                systems. This may result in data
+                                loss.</para></listitem>
                         </varlistentry>
                         <varlistentry>
                                 <term><command>kexec</command></term>