X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=man%2Fsystemd.unit.xml;h=2ae986ad04b0954d757d1f05b5fc3326c60de6b3;hp=968ee58be3550d76712893126dc502b5363967f7;hb=f1dd0c3f9b4a257e81ff9c6a08070c702a0db45a;hpb=21931dbe6561047a6fe728dc38cd2d6468066e5a
diff --git a/man/systemd.unit.xml b/man/systemd.unit.xml
index 968ee58be..2ae986ad0 100644
--- a/man/systemd.unit.xml
+++ b/man/systemd.unit.xml
@@ -139,7 +139,10 @@
with the enable command of the
systemctl1
tool which reads information from the [Install]
- section of unit files. (See below.)
+ section of unit files. (See below.) A similar
+ functionality exists for Requires=
+ type dependencies as well, the directory suffix is
+ .requires/ in this case.
Note that while systemd offers a flexible
dependency system between units it is recommended to
@@ -575,6 +578,7 @@
ConditionPathExists=
ConditionDirectoryNotEmpty=
ConditionKernelCommandLine=
+ ConditionVirtualization=
ConditionNull=
Before starting a unit
@@ -598,7 +602,7 @@
exist. ConditionDirectoryNotEmpty=
is similar to
ConditionPathExists=
- but verifies whether a cetrain path is
+ but verifies whether a certain path is
exists and is a non-empty
directory. Similarly
ConditionKernelCommandLine=
@@ -607,7 +611,7 @@
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
+ assignment (i.e. two words, separated
by the equality sign). In the former
case the kernel command line is
searched for the word appearing as is,
@@ -615,7 +619,24 @@
assignment. In the latter case the
exact assignment is looked for with
right and left hand side
- matching. Finally,
+ matching. ConditionVirtualization=
+ may be used to check whether the
+ system is executed in a virtualized
+ environment and optionally test
+ whether it is a specific
+ implementation. Takes either boolean
+ value to check if being executed in
+ any virtual environment or one of the
+ qemu,
+ kvm,
+ vmware,
+ microsoft,
+ oracle,
+ xen,
+ openvz to test
+ against a specific implementation. The
+ test may be negated by prepending an
+ exclamation mark. Finally,
ConditionNull= may
be used to add a constant condition
check value to the unit. It takes a
@@ -623,10 +644,21 @@
false the condition
will always fail, otherwise
succeed. If multiple conditions are
- specified the unit will be executed
- iff at least one of them applies
- (i.e. a logical OR is
- applied).
+ specified the unit will be executed if
+ all of them apply (i.e. a logical AND
+ is applied). Condition checks can be
+ prefixed with a pipe symbol (|) in
+ which case a condition becomes a
+ triggering condition. If at least one
+ triggering condition is defined for a
+ unit then the unit will be executed if
+ at least one of the triggering
+ conditions apply and all of the
+ non-triggering conditions. If you
+ prefix an argument with the pipe
+ symbol and an exclamation mark the
+ pipe symbol must be passed first, the
+ exclamation second.