[PLUG] What could this mean?

[Mel Andres]

John Jason Jordan wrote:
> On booting (Grub line has "quiet no splash") I suddenly got a couple
> screenfuls of the following:
>
> udevd[2216] add-to-rules: unknown 'attrs{idProduct}'
>
> The same line repeated for about a screenful worth on shutdown, but
> after restarting, shutting down, and restarting a few times, it now
> happens only on bootup. In spite of what appears to be an error
> message, the computer seems to operate fine.
>
> Whatever it means, it was caused by something in the following: Edgy
> amd64 announced that I had half a dozen upgrades. I was applying the
> upgrades with Synaptic when the computer locked up -- dead keyboard and
> mouse, no disk activity. I had to hit the power button.
>
> When Grub came back up I decided to run memtest. I have never done this
> before, but I recently ran into a webpage suggesting that memory might
> be a cause of lockups -- and I have one original 256 MB stick and one 1
> GB replacement stick. Maybe there is a memory mismatch or something. So
> I ran memtest one pass, a little over an hour. No errors, so I went
> ahead and booted. That is when the above message suddenly appeared.
>
> Google tells me that udevd is some kind of utility, but I don't
> understand what it does. And the rest of it is in Greek. But if I
> understood it I bet I would know what is wrong and have a fair chance
> of fixing it.
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>   
Jason,

  I looked at the man pages for udev, udevd, udevinfo, and udevmonitor. 
Basically, udev is the program that handles devices dynamically. This is 
how we are able to plug in digital cameras, thumb drives, ipods, etc. 
and have them magically be mounted and available. You might find 
something useful in the output of "udevinfo -e".

  Mel Andres