lvm2 installation messed up? /dev/mapper/control : open failed

[VB]

Hi, ( I forgot the subject on my last identical email,
sorry )
 When running "make install" for the 2.6.3 from a RH9
2.4.20-8 machine I get the following error after the
zImage is succesfully made and moved and the new
System.map file is made:

/dev/mapper/control : open failed : No such file or
directory
Is device-mapper driver missing fromkernel?

Googl-ing gives me all types of different solutions
that don't seem related, so I'm utterly confused. 
After installing lvm2, am I supposed to run additional
commands (i.e. vgconvert)? I installed lvm2 using the
redhat rpm and statically compiled devfs into the
kernel.  I'm leaning towards following the solution at
the bottom of:

http://www.linuxquestions.org/questions/archive/8/2003/12/4/129549

but would running a script everytime on startup be the
solution?


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