Am 22.02.2017 um 18:17 schrieb christina zou:
Thanks for the tip.

To be honest, I'm hacking on a personal project for fun, security isn't
really a concern.

i better don't comment that attitude which leads to trained misbehavior in general....

Raspberry Pi (which I'm using) recommends placing startup scripts in
rc.local in its official documentation:
https://www.raspberrypi.org/documentation/linux/usage/rc-local.md
<https://www.raspberrypi.org/documentation/linux/usage/rc-local.md>

However, if /dev/video0 can't be recognized as root, I'll follow your
advice and run my Ffmpeg command elsewhere.

i said "man su"
su -c "command" - user

On Wed, Feb 22, 2017 at 9:09 AM, Reindl Harald <h.rei...@thelounge.net>
wrote:



Am 22.02.2017 um 18:07 schrieb christina zou:

better question - why would anybody start anything dangerous like

multimedia encoders as root? maybe something like SELinux/appamor is
protecting your from yourself

You are probably right.

I want a Ffmpeg command to automatically start when I boot my Pi, without
any interfacing required (login/authentication). I've currently stuck the
command in /etc/rc.local, where everything runs as root. Do you know where
to better place it?


surely, a proper service which drops to a restricted user

with systemd a few lines, for sysvinit there are thousands of explaes how
to start a service proper, and if you don't get something better just "man
su"

on proper systems rc.local died in 2011....

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