I just noticed on my system that upgrading from 4.2 to 5.2
caused a
modules problem.  I assume the same problem would occur with
upgrades
from 4.2 to any more recent redhat release.

The problem is that the modutils package used to be called
the modules
package.  The results after upgrade are:

   hjstein@bacall:~$ rpm -ql modules
   /sbin/depmod
   /sbin/genksyms
   /sbin/insmod
   /sbin/kerneld
   /sbin/ksyms
   /sbin/lsmod
   /sbin/modprobe
   /sbin/request-route
   /sbin/rmmod
   /usr/doc/modules-2.0.0-5
   /usr/doc/modules-2.0.0-5/README
   /usr/man/man1/depmod.1
   /usr/man/man1/insmod.1
   /usr/man/man1/ksyms.1
   /usr/man/man1/lsmod.1
   /usr/man/man1/modprobe.1
   /usr/man/man1/rmmod.1
   /usr/man/man2/modules.2
   /usr/man/man8/genksyms.8
   /usr/man/man8/kerneld.8
   hjstein@bacall:~$ rpm -ql modutils
   /etc/rc.d/init.d/kerneld
   /sbin/depmod
   /sbin/genksyms
   /sbin/insmod
   /sbin/insmod.static
   /sbin/kerneld
   /sbin/ksyms
   /sbin/lsmod
   /sbin/modinfo
   /sbin/modprobe
   /sbin/rmmod
   /sbin/rmmod.static
   /usr/man/man1/depmod.1
   /usr/man/man1/insmod.1
   /usr/man/man1/ksyms.1
   /usr/man/man1/lsmod.1
   /usr/man/man1/modinfo.1
   /usr/man/man1/modprobe.1
   /usr/man/man1/rmmod.1
   /usr/man/man2/create_module.2
   /usr/man/man2/delete_module.2
   /usr/man/man2/get_kernel_syms.2
   /usr/man/man2/init_module.2
   /usr/man/man2/query_module.2
   /usr/man/man8/genksyms.8
   /usr/man/man8/kerneld.8

Pretty ugly.

It looks like RPM spec files need a 'Replaces:' keyword to
record that
a given package actually replaces one or more other
packages.  Either
that or build the info into the installer...