[systemd-devel] [Install] question

[Tomasz Torcz]

On Thu, Aug 01, 2013 at 07:48:19AM +0100, lux-integ wrote:
> Greetings,
> 
> I am trying to learn to use systemd.
> 
> I  scanned through some of the online manpages and looked at some example unit 
> files.  I keep seeing
> 
> [Install]
> WantedBy=multi-user.target
> 
> or
> 
> [Install]
> WantedBy=sysinit.target 
> 
> or some such
 
  Description of targets is in "man systemd.special".


> I have for example a need to mount stuff (via a mount unit )  then to create 
> directories and copy stuff to them
> I dont know if these '/bin/mkdir'  and '/bin/cp'  tasks  can be done under 
> '[Install]'
 
  They cannot be in mount.  There are few way to accomplish what you want,
but without details I can provide only vague directions.  You need to create
unit for your work.  You can stuff mkdir into ExecStartPre and cp into ExecStart;
you have to make your unit Require the mount unit (or go with the automounter);
activation of your work unit should trigger mount.
  There are few details to work out, like for example usage of PartOf.

> 
> Ib brief, I dont know what [Install] is for, 
> --what goes under it?
> --when it is used ?
> --or not used etc ?
> --and I cant locate a manpage to explain it.  
> 
> I would be grateful if someone could send me the appropriate URL for 'Install' 
> manpage  and or explain what it is and how it is used.

  Start with "man systemd.unit" and search for "[Install]". All four directives
are described there.
  The information is used by "systemctl enable" command to create appropriate symlinks.

  Man pages are also available at http://www.freedesktop.org/software/systemd/man/
-- 
Tomasz Torcz       ,,(...) today's high-end is tomorrow's embedded processor.''
xmpp: zdzichubg at chrome.pl                      -- Mitchell Blank on LKML