what is going on with "/dev/dm" [important!]

[Gene Czarcinski]

On Sunday 27 September 2009 06:21:49 Christoph Frieben wrote:
> 2009/9/27 Gene Czarcinski
> 
> > Is this new "feature" something we are going to have to live with??
> >
> >  I believe that we cannot live with this ... or at least anaconda cannot:
> >
> > https://bugzilla.redhat.com/show_bug.cgi?id=525912
> >
> > Gene
> 
> Fixed in Fedora-rawhide as of 2009-09-25. ~C
> 
Confirmed by testing with:
http://alt.fedoraproject.org/pub/alt/stage/12-Beta-TC/Fedora-12-Beta-TC-
x86_64-DVD/Fedora-12-Beta-x86_64-DVD.iso

525912 has been closed.

I am still a bit puzzled with the /dev/dm-N situation.  I have read the 
comments in Bug #507461 and Bug #497259 and am a bit unclear why /dev/dm-N 
shows up.  As I understand it, Fedora maintainers/developers are doing 
something to suppress it.  Is this something from upsteam?  Why?

IMHO, having something show as /dev/dm-1 is not as meaningful as 
/dev/mapper/VGx-root (such as in the output of "df").  If this is the result 
of upstream stuff, how do other distributions such as debian handle it?

Gene