X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=man%2Fsystemd.unit.xml;h=14da607a95f1f3288bb93455812d779c4b7056a8;hb=b363ca6f206258acff8bc0a27dc72a99210011a8;hp=3bc5d3c66f6f8453712ffdbcc481cb1ca8467463;hpb=74ac3cbd509de2f5995542aa5db39328e8cbd22a;p=elogind.git diff --git a/man/systemd.unit.xml b/man/systemd.unit.xml index 3bc5d3c66..14da607a9 100644 --- a/man/systemd.unit.xml +++ b/man/systemd.unit.xml @@ -182,13 +182,30 @@ %i specifier in many of the configuration options. Other specifiers that may be used are %n, %N, - %p, %P and - %I, for the full unit name, the - unescaped unit name, the prefix name, the unescaped - prefix name and the unescaped instance name, - respectively. The prefix name here refers to the - string before the @, i.e. "getty" in the example - above, where "tty3" is the instance name. + %p, %P, + %I and %f, for + the full unit name, the unescaped unit name, the + prefix name, the unescaped prefix name, the unescaped + instance name and the unescaped filename, + respectively. The unescaped filename is either the + unescaped instance name (if set) with / prepended (if + necessary), or the prefix name similarly prepended + with /. The prefix name here refers to the string + before the @, i.e. "getty" in the example above, where + "tty3" is the instance name. + + If a unit file is empty (i.e. has the file size + 0) or is symlinked to /dev/null + its configuration will not be loaded and it appears + with a load state of masked, and + cannot be activated. Use this as an effective way to + fully disable a unit, making it impossible to start it + even manually. + + The unit file format is covered by the + Interface + Stability Promise. @@ -424,22 +441,24 @@ - RecursiveStop= + StopRetroactively= Takes a boolean argument. If and - the unit stops without being requested - by the user, all units - depending on it will be stopped as + a unit this unit requires stops + without this being requested by the + user, this unit will be stopped as well. (e.g. if a service exits or - crashes on its own behalf, units using - it will be stopped) Note that normally - if a unit stops without a user request, + crashes on its own behalf, units this + flag is set for that require it will + be stopped.) Note that normally if a + unit stops without a user request, units depending on it will not be terminated. Only if the user requested - shutdown of a unit, all units depending - on that unit will be shut down as well - and at the same time. Defaults to + shutdown of a unit, all units + depending on that unit will be shut + down as well and at the same + time. Defaults to . @@ -572,6 +591,48 @@ change. + + ConditionPathExists= + ConditionKernelCommandLine= + + Before starting a unit + verify that the specified condition is + true. With + ConditionPathExists= + a file existance condition can be + checked before a unit is started. If + the specified absolute path name does + not exist startup of a unit will not + actually happen, however the unit is + still useful for ordering purposes in + this case. The condition is checked at + the time the queued start job is to be + executed. If the absolute path name + passed to + ConditionPathExists= + is prefixed with an exclamation mark + (!), the test is negated, and the unit + only started if the path does not + exist. Similarly + ConditionKernelCommandLine= + may be used to check whether a + specific kernel command line option is + set (or if prefixed with the + exclamation mark unset). The argument + must either be a single word, or an + assignment (i.e. two words, seperated + by the equality sign). In the former + case the kernel command line is search + for the word appearing as is, or as + left hand side of an assignment. In + the latter case the exact assignment + is looked for with right and left hand + side matching. If multiple conditions + are specified the unit will be + executed iff at least one of them + apply (i.e. a logical OR is + applied). + Unit file may include a [Install] section, which