[systemd-devel] systemctl start second.service first.service

[Reindl Harald]

Am 12.01.2018 um 04:59 schrieb Andrei Borzenkov:
> 12.01.2018 03:47, 林自均 пишет:
>> How about adding an "--order" option to systemctl? With this option,
>> systemctl will sort those units by ordering dependencies before submitting
>> them.
> 
> And why does it matter? If unit A can be started without unit B, why
> does it matter in which order they are started? If unit A can *not* be
> started without unit B, it must tell so using Requires or Requisite.
> 
> What are you trying to achieve?

there is a difference between Requires/After

After is optional, means the service *can* work without the other *but* 
if both are enabled there is a defined ordering at boot as well as at 
shutdown

with your broken logic Before/After would be completly useless because 
why would you care at boot time when you don't in case of restarts?

P.S.: fix your mail client