Thanks Laszlo!
Ok.... so, if I got it straight, HAL support must exist at "user interface
level" (as opposite to "user-level" - "out of kernel")? Can you point me
to some docs about this? I have recently studied udev/devfs so I tought an
user-level app was called (hotplug), wich had (user-level) rules that then
would mount/create device mount point/whatever. This was what I meant
about "kernel/system" (kernel notifying hotplug at user-level, hotplug
doing something about the new device).
Well, as I said, I was using a completly updated kubuntu badger install,
so I should then have ivman running (I guess I hadn't or I would see the
device according to your description) but I'll check it again when I get
home.
The ivman solution will be removed when KDE's HAL support gets included
then? Because you said this was a kubuntu-only "feature" and runs at a
lower-level than X, so what if (as I have done, actually), someone
installs Kubuntu and then apt-get's ubuntu-desktop to use gnome? Wouldn't
gnome HAL support and ivman conflict?
PS: I'm writing to kubuntu-devel because I think this is the way to help
debug/improve the upcoming badger. If you feel I should be posting
somewhere else please just point me to the right place.
PS2: Let me do some ascii-art to picture what I was saying about
"UI-Level, System-Level, Kernel-Level":
-----------------------------------------
UI-Level (KDE/Gnome/whatever DE/WM)
-----------------------------------------
System-Level ("user-level" apps): daemons
-----------------------------------------
Kernel-Level
-----------------------------------------
Thanks
--
Joao Pedro Clemente
jpcl @ rnl.ist.utl.pt
On Mon, 16 Jan 2006, Laszlo Pandy wrote:
> HAL is the hardware abstraction layer which is used by higher level programs
> to mount these USB devices. The latest gnome which comes with badger has
> support by default for HAL. This means you can configure the mounting
> behaviour with gnome settings. However KDE 3.4 does not have HAL support. KDE
> 3.5 has HAL support and will be included in dapper. For Kubuntu users, there
> should be a program called ivman installed which will mount any USB device
> regardless if KDE or GNOME or X for that matter is running. If you have a
> Kubuntu install ivman should be running in the background and should mount
> everything that gets plugged in.
> The kernel does not automatically mount everything as this is a potential
> security issue. So no, it is not done at the "kernel/system" level, instead
> HAL is used to call the low level system to mount the device, only when
> requested by the upper level program.
>
> On Monday 16 January 2006 9:00 am, Joao Pedro Clemente wrote:
> > Hi.
> > I faced a strange behaviour diference in kubuntu badger vs ubuntu badger:
> >
> > With a fully updated kubuntu badger, I was inserting an usb pen and I
> > would see no automount being made. I then installed ubuntu-desktop
> > package, switched to gnome, and strangely gnome would show me a mounted
> > device when I inserted the same pen!
> >
> > Shouldn't this "detect device hotplug and automount" be something done at
> > "kernel/system" level? I was amazed to see a diference by simply switching
> > from kde to gnome!
> >
> > I was hoping that, even if no X was running, hotplug/udev would detect and
> > mount the device. So I was unable to explain myself this difference...
> >
> > Anyone faced this?
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