Systemd unit file: Can/Should ExecStart and ExecStop run a script?

Kay Sievers kay.sievers at
Wed Oct 19 21:27:40 UTC 2011

On Wed, Oct 19, 2011 at 23:20, Richard Shaw <hobbes1069 at> wrote:
> On Wed, Oct 19, 2011 at 3:58 PM, Tom Hughes <tom at> wrote:
>> On 19/10/11 21:48, Richard Shaw wrote:
>>> On Wed, Oct 19, 2011 at 3:26 PM, Lennart Poettering
>>> <mzerqung at>  wrote:
>>>> You should manage acess control of device nodes from udev rules. That's
>>>> the only reasonably safe way to handle these things. And this should not
>>>> be mentioned at all in systemd unit files.
> Ok based on Tom's file I came up with the following. I know Lennart,
> you don't like setting ACL's from Systemd, but unless someone want's
> to help me write udev rules that will run before the start of
> mythbackend and after it's stopped, this is all I have:

Yeah, that looks very wrong.

Like mentioned earlier in this thread, just put the user into the
audio/video system group and forget about any permissions management.


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