why do we use systemd?

[Adrian Sevcenco]

On 07/06/2014 07:45 PM, lee wrote:
> Joe Zeff <joe at zeff.us> writes:
> 
>> On 07/06/2014 12:43 AM, lee wrote:
>>> Not even the configuration files are where they belong.
>>
>> Actually, they're exactly where they belong.  They just aren't where
>> you expect them to be.
> 
> They belong under /etc, not hidden somewhere in /var.
> 
as all things in var there are temporary state files

root at hal: ~ # ls -lR /var/lib/systemd
/var/lib/systemd:
total 12
drwxr-xr-x. 2 root root 4096 Jun 25 22:15 catalog
drwxr-xr-x. 2 root root 4096 Jun 21 19:29 coredump
-rw-------. 1 root root  512 Jul  7 08:03 random-seed

/var/lib/systemd/catalog:
total 12
-rw-r--r-- 1 root root 9570 Jun 25 22:15 database

/var/lib/systemd/coredump:
total 0

maybe you meant /usr/lib/systemd where initial files for services are?
(but /usr/lib is ok .. i see no problem with that)

configuration directory (for both systemd and systemd services)
are in /etc/systemd (btw : the services configurations and declarations
from /etc/systemd overwrites those from /usr/lib/systemd)

moreover you can separately configure a service without modifying the
.service file (which usually is linked in /etc/systemd) :
"Along with a unit file foo.service, a directory foo.service.d/ may
exist. All files with the suffix ".conf" from this directory will be
parsed after the file itself is parsed. This is useful to alter or add
configuration settings to a unit, without having to modify their unit
files. Make sure that the file that is included has the appropriate
section headers before any directive." (man systemd.unit)

HTH,
Adrian


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