udev and EVMS

udev and EVMS

[Marco d'Itri]

Who is at fault? Both udev and EVMS are creating nodes in /dev.

----- Forwarded message from Martin Waitz -----

> I think dm manages its nodes by itself.

hmm, i'm using evms and yes, it creates its nodes by itself.
but i get 'dm-[0-9]' files in udev, too
one for every logical volume (but without the correct name, just the
number)

so perhaps one would have to suppress creation of these nodes?


----- End forwarded message -----

-- 
ciao, |
Marco | [3438 curhNBWXCD782]


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Re: udev and EVMS

[Kevin Corry]

On Wednesday 03 December 2003 07:32, Marco d'Itri wrote:
> Who is at fault? Both udev and EVMS are creating nodes in /dev.
>
> ----- Forwarded message from Martin Waitz -----
>
> > I think dm manages its nodes by itself.
>
> hmm, i'm using evms and yes, it creates its nodes by itself.
> but i get 'dm-[0-9]' files in udev, too
> one for every logical volume (but without the correct name, just the
> number)
>
> so perhaps one would have to suppress creation of these nodes?
>
>
> ----- End forwarded message -----

I don't see why there should be a problem with EVMS and udev operating at the 
same time (although I haven't actually tried udev yet).

EVMS has to be able to create it's device nodes in /dev/evms. The kernel has 
no knowledge of the names that EVMS gives to its volumes (which are the names 
given to the EVMS device nodes). Device-Mapper only creates dm-? entries, 
which doesn't give the user any clue as to which device-node corresponds to 
which volume.

EVMS only ever creates nodes in /dev/evms/, and the kernel never creates a 
name for a block-device that would clash with these. So I'm curious why there 
would be a conflict between EVMS and udev.

-- 
Kevin Corry
kevcorry@us.ibm.com
http://evms.sourceforge.net/



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