X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=man%2Fsystemd.xml;h=fc4810767ad1b301591c070e2c928f32de6f7cbe;hp=f0fea5d0fefb6c2082f777c74ab84a5d94ee26f4;hb=8112e84f657839a056afb411249a627956518b24;hpb=b9aea9547a5398685c28288b7dabfede55e0a39b diff --git a/man/systemd.xml b/man/systemd.xml index f0fea5d0f..fc4810767 100644 --- a/man/systemd.xml +++ b/man/systemd.xml @@ -45,7 +45,7 @@ systemd init - systemd System and Session Manager + systemd System and Service Manager @@ -60,7 +60,7 @@ Description - systemd is a system and session manager for + systemd is a system and service manager for Linux operating systems. When run as first process on boot (as PID 1), it acts as init system that brings up and maintains userspace services. @@ -77,7 +77,7 @@ When run as system instance, systemd interprets the configuration file system.conf, otherwise - session.conf. See + user.conf. See systemd.conf5 for more information. @@ -136,44 +136,59 @@ - + Tell systemd to run a - system instance (resp. session + system instance (resp. user instance), even if the process ID is - not 1 (resp. is 1), i.e. systemd is not - (resp. is) run as init process. + not 1 (resp. is 1), i.e. systemd is + not (resp. is) run as init process. Normally it should not be necessary to pass these options, as systemd automatically detects the mode it is started in. These options are hence of - little use except for - debugging. + little use except for debugging. Note + that it is not supported booting and + maintaining a full system with systemd + running in + mode, but PID not 1. In practice, + passing explicitly is + only useful in conjunction with + . - Dump core on crash. This switch has no effect when run as session instance. + Dump core on + crash. This switch has no effect when + run as user + instance. - Run shell on crash. This switch has no effect when run as session instance. + Run shell on + crash. This switch has no effect when + run as user + instance. - Ask for confirmation when spawning processes. This switch has no effect when run as session instance. + Ask for confirmation + when spawning processes. This switch + has no effect when run as user + instance. Show terse service status information while booting. This - switch has no effect when run as - session instance. Takes a boolean - argument which may be omitted - which is interpreted as + switch has no effect when run as user + instance. Takes a boolean argument + which may be omitted which is + interpreted as . @@ -182,7 +197,7 @@ Controls whether output of SysV init scripts will be directed to the console. This switch - has no effect when run as session + has no effect when run as user instance. Takes a boolean argument which may be omitted which is interpreted as @@ -235,6 +250,29 @@ it defaults to . + + + + + Sets the default + output resp. error output for all + services and sockets, i.e. controls + the default for + + resp. + (see + systemd.exec5 + for details). Takes one of + , + , + , + , + , + , + . If the + argument is omitted it defaults to + . + @@ -317,9 +355,9 @@ systemd.timer5. Swap units are very similar to - mount units and encapsulated memory swap + mount units and encapsulate memory swap partitions or files of the operating - systemd. They are described in systemd.swap5. + system. They are described in systemd.swap5. Path units may be used to activate other services when file system @@ -330,7 +368,7 @@ Units are named as their configuration files. Some units have special semantics. A detailed - list you may find in + list is available in systemd.special7. systemd knows various kinds of dependencies, @@ -355,7 +393,7 @@ this. Application programs and units (via - dependencies) may requests state changes of units. In + dependencies) may request state changes of units. In systemd, these requests are encapsulated as 'jobs' and maintained in a job queue. Jobs may succeed or can fail, their execution is ordered based on the ordering @@ -462,9 +500,9 @@ pkg-config systemd --variable=systemdsystemunitdir. Other directories checked are - /usr/local/share/systemd/system + /usr/local/lib/systemd/system and - /usr/share/systemd/system. User + /usr/lib/systemd/system. User configuration always takes precedence. pkg-config systemd @@ -483,10 +521,10 @@ - Session unit directories + User unit directories Similar rules apply - for the session unit + for the user unit directories. However, here the XDG Base Directory specification @@ -494,11 +532,11 @@ units. Applications should place their unit files in the directory returned by pkg-config systemd - --variable=systemdsessionunitdir. Global + --variable=systemduserunitdir. Global configuration is done in the directory reported by pkg-config systemd - --variable=systemdsessionconfdir. The + --variable=systemduserconfdir. The enable and disable commands of the @@ -559,12 +597,12 @@ to systemctl daemon-reexec. - systemd session managers will + systemd user managers will start the exit.target unit when this signal is received. This is mostly equivalent to - systemctl --session start + systemctl --user start exit.target. @@ -579,7 +617,7 @@ systemctl start ctl-alt-del.target. - systemd session managers + systemd user managers treat this signal the same way as SIGTERM. @@ -596,7 +634,7 @@ kbrequest.target. This signal is ignored by - systemd session + systemd user managers. @@ -705,6 +743,101 @@ systemctl start reboot.target. + + + SIGRTMIN+6 + + Reboots the machine via kexec, + starts the + kexec.target + unit. This is mostly equivalent to + systemctl start + kexec.target. + + + + SIGRTMIN+13 + + Immediately halts the machine. + + + + SIGRTMIN+14 + + Immediately powers off the machine. + + + + SIGRTMIN+15 + + Immediately reboots the machine. + + + + SIGRTMIN+16 + + Immediately reboots the machine with kexec. + + + + SIGRTMIN+20 + + Enables display of + status messages on the console, as + controlled via + systemd.show_status=1 + on the kernel command + line. + + + + SIGRTMIN+21 + + Disables display of + status messages on the console, as + controlled via + systemd.show_status=0 + on the kernel command + line. + + + + SIGRTMIN+22 + SIGRTMIN+23 + + Sets the log level to + debug + (resp. info on + SIGRTMIN+32), as + controlled via + systemd.log_level=debug + (resp. systemd.log_level=info + on SIGRTMIN+23) on + the kernel command + line. + + + + SIGRTMIN+27 + SIGRTMIN+28 + SIGRTMIN+29 + + Sets the log level to + console + (resp. kmsg on + SIGRTMIN+28; + resp. syslog-or-kmsg + on SIGRTMIN+29), as + controlled via + systemd.log_target=console + (resp. systemd.log_target=kmsg + on SIGRTMIN+28; + resp + systemd.log_target=syslog-or-kmsg + on SIGRTMIN+29) on + the kernel command + line. + @@ -751,7 +884,7 @@ $XDG_DATA_HOME $XDG_DATA_DIRS - The systemd session + The systemd user manager uses these variables in accordance to the XDG @@ -845,8 +978,8 @@ Takes a boolean argument. If systemd spawns a shell when it - crashes. Otherwise no core dump is - created. Defaults to + crashes. Otherwise no shell is + spawned. Defaults to , for security reasons, as the shell is not protected by any password @@ -909,6 +1042,18 @@ environment variables described above. + + systemd.default_standard_output= + systemd.default_standard_error= + Controls default + standard output/error output for + services, with the same effect as the + + resp. + command line arguments described + above. + + @@ -917,20 +1062,19 @@ - @/org/freedesktop/systemd1/notify + /run/systemd/notify Daemon status - notification socket. This is an AF_UNIX - datagram socket in the Linux abstract - namespace, and is used to implement - the daemon notification logic as - implemented by + notification socket. This is an + AF_UNIX datagram socket and is used to + implement the daemon notification + logic as implemented by sd_notify3. - @/org/freedesktop/systemd1/logger + /run/systemd/logger Used internally by the systemd-logger.service @@ -938,32 +1082,30 @@ of spawned processes to syslog3 or the kernel log buffer. This is an - AF_UNIX stream socket in the Linux - abstract namespace. + AF_UNIX stream + socket. - @/org/freedesktop/systemd1/shutdown + /run/systemd/shutdownd Used internally by the shutdown8 tool to implement delayed shutdowns. This is an AF_UNIX datagram - socket in the Linux abstract - namespace. + socket. - @/org/freedesktop/systemd1/private + /run/systemd/private Used internally as communication channel between systemctl1 and the systemd process. This is an - AF_UNIX stream socket in the Linux - abstract namespace. This interface is - private to systemd and should not be - used in external + AF_UNIX stream socket. This interface + is private to systemd and should not + be used in external projects.