So if I run
systemctl list-units --type=target I can see all of the target units on my machine.
But if I wanted to find a list of services and other units that are under each of these “umbrella” target units, how could I do that?
In other words, if I see with
journalctl that I have a
UNIT xyz, how would I know which target that unit belongs to?
I see in the journal messages that say “Reached target
<target_name>“, but I’m curious what log messages and units lead up to that target being reached.
I think you are looking for
From the man page:
list-dependencies [UNIT] Shows units required and wanted by the specified unit. This recursively lists units following the Requires=, Requisite=, ConsistsOf=, Wants=, BindsTo= dependencies. If no unit is specified, default.target is implied. By default, only target units are recursively expanded. When --all is passed, all other units are recursively expanded as well. Options --reverse, --after, --before may be used to change what types of dependencies are shown.
# systemctl list-dependencies zfs.target zfs.target ● ├─zfs-mount.service ● ├─zfs-share.service ● ├─zfs-zed.service ● └─zfs-import.target ● └─zfs-import-cache.service
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