how to run "generate-modprobe.conf" given a 2.6 kernel?

["Robert P. J. Day" <rpjday mindspring com>]

  i asked about this once upon a time, but don't recall seeing
a solution, and there's nothing in bugzilla about it.

  given FC3 and a 2.6 kernel, how does one run 
/sbin/generate-modprobe.conf to generate the new modules
config file?

  if you try it, the script fails saying there's no "modprobe.old"
command, which is true.  this may have worked when folks manually
upgraded their "modutils" RPM and had both the new and old versions
of those commands around, but it clearly fails now under FC3.

  so, what to do?

rday

p.s.  yes, i'm bored and don't have enough to do.