can pivot_root work?

	Has anyone gotten pivot_root and/or a 2.4 kernel to work? To make
a long story somewhat short, I'm interested in using tomsrtbt as the basis
for a network installation floppy. Essentially I want to boot, prompt for
some info/figure some stuff out, mount up an nfs root containing my
installation scripts, environment, etc., pivot_root to that and continue.

	The first problem I ran in to was pivot_root not being available.
That was easy, I rebuilt busybox to include pivot_root. Then I realized
the version of the kernel tomsrtbt includes doesn't support pivot_root,
so I tried to upgrade to a 2.4 kernel. This is where I ran in to all
sorts of problems. I can create the floppy and boot the kernel ok, but it
can't mount up the ram disk as root and continue (errors of the VFS: Unable
to mount root.. variety). I tried the suggestions on the Wiki for using
a loopback device and that didn't seem to help (or even work :( ).

	Any pointers greatly appreciated.. Thanks!