CentOS - Nov 2016 - dumb question on permissions out of the box

Can someone explain to me the logic that I, as a user, cannot, by default,
mount a DVD from the command line, but I can mount it via dolphin?

      mark

On Tue, 15 Nov 2016 21:49, m.roth at ... wrote:
>
> Can someone explain to me the logic that I, as a user, cannot, by default,
> mount a DVD from the command line, but I can mount it via dolphin?
Dolphin (and consorts) call "udisks" via messagebus / udev protocoll,
and
thus get the permission / rights to do it without direct "root rights"

You can do that manually fron the commandline via the "udisksctl"
tool.
See "man udisksctl" for details.

  - Yamaban.

PS: No, the question was not dumb, that udev stuff fools me up from
time to time to.

Yamaban wrote:
> On Tue, 15 Nov 2016 21:49, m.roth at ... wrote:
>>
>> Can someone explain to me the logic that I, as a user, cannot, by
>> default, mount a DVD from the command line, but I can mount it via
dolphin?
>
> Dolphin (and consorts) call "udisks" via messagebus / udev
protocoll, and
> thus get the permission / rights to do it without direct "root
rights"
>
> You can do that manually fron the commandline via the "udisksctl"
tool.
> See "man udisksctl" for details.
>
> PS: No, the question was not dumb, that udev stuff fools me up from
> time to time to.
Right. And I've only been doing systems administration for, um, 21 years,
so I'm not surprised I never heard of udiskctl, and only know mount (and,
only recently, pmount).

Thanks, guy. It's just aggravating that I can't say mount /dev/dvd0
without jumping through hoops.

        mark "Ve Must Protect You From Using Command Line!"