Re: [gentoo-user] pmount question

[Joost Roeleveld <joost@antarean.org>]

On Tuesday 22 February 2011 07:33:45 David Relson wrote:
> On Tue, 22 Feb 2011 08:37:06 +0000
> 
> Neil Bothwick wrote:
> > On Mon, 21 Feb 2011 21:01:25 -0500, David Relson wrote:
> > > > pmount is supposed to be run as a user and it mounts the
> > > > filesystem owned by the user running it. If you only have a
> > > > single user, you could call pmount with su. If you have multiple
> > > > users, you should be letting a desktop tool handle the mounting
> > > > anyway.
> > > 
> > > I've heard "pmount ... as a user" before, but never understood what
> > > it meant.  If "pmount ..." is run by a rule
> > > in /etc/udev/rules.d/10-local.rules, how is it known what userid to
> > > use?  Does "pmount ... as a user" assume particular settings in
> > > gnome, the kernel, or ???
> > 
> > pmount is meant to be run by a normal user, usually from an
> > automounter, as its main objective is to allow normal users to mount
> > removable devices without fstab rules, while udev rules are run as
> > root. So if you want it to run as a user from a udev rule you'll have
> > to use su, as in
> > 
> > su youruser -c 'pmount /dev/PTY'
> 
> Neil:
> 
> I'm currently using "pmount -u 007 /dev/PTY" as this gives rwx
> permissions for root and group plugdev, which is adequate for my
> workstation (which only ever has me using it).
> 
> I've seen that Ubuntu with Gnome automounts USB sticks.  That seems
> pleasantly convenient and is done without any rules (such as I
> presently have) in /etc/udev/rules.d. Do you know what they're doing?

Gnome (and most other desktop environments) can be configured to auto-mount a 
USB-drive, CDs,...

Gnome will, as is mentioned previously, probably use "pmount" started as the 
current user which will then mount the drive with the user as the owner.

udev-rules are only really needed when you don't (want to) use an automounter 
with your X-desktop.

I myself use KDE and there I can specify if I want a USB-drive mounted or not.
I believe I can also specify some USB-drives to auto-mount when I plug them 
in. But I do prefer to be able to decide each time as sometimes I just plug in 
my phone or camera to charge it. (My phone also acts like a usb-drive when so 
configured)

--
Joost