Guidelines

The modules in these directories are provided as built for each kernel.
They are here in case you need to construct a system by hand.
Personally, I'd reccomend finding a way to install them as a package 
so they can be easily and painlessly upgraded.

The modules.tar.gz tarballs will extract to a versioned directory when
extracted.  That is, 'tar -zxvf modules.tar.gz' will create a directory
named '2.4.xx' containing the contents.  You should make sure that the
directory you extract the tarball in doesn't already have an identical
versioned subdirectory in it or you may risk overwriting previously
installed modules.

The modules for sun4cdm.s were built without SMP support.
Those for sun4dm_smp.s were built with SMP support.
The Ultra kernel, sun4u.s, always has SMP built-in.


--Jason