can I unload a module from within sysinstall ?

[Ensel Sharon]

I need to load a new kernel module during sysinstall so that I can see my
raid controller.

Easy - I go into configure, load, and load it off the floppy.  Easy.

BUT, freebsd already has a xyz.ko, and it is already loaded, so it fails.

So my question is, how do I unload the existing xyz.ko before I load the
new one ?

Can I do it in sysinstall ?

Can I do it in the loader prompt prior to sysinstall ?