kernel 2.4 & redhat 6.2

So I've got this RedHat 6.2 box.. and I'm trying to upgrade it to kernel 2.4.3. When I boot the box, it takes forever (about 5 minutes probably) before it comes up. The tail of dmesg looks like:

NFS: NFSv3 not supported.
nfs warning: mount version older than kernel
portmap: server localhost not responding, timed out
portmap: server localhost not responding, timed out
lockd_up: makesock failed, error=-5
portmap: server localhost not responding, timed out
nfs warning: mount version older than kernel
lockd_up: no pid, 2 users??
portmap: server localhost not responding, timed out
portmap: server localhost not responding, timed out
portmap: server localhost not responding, timed out

A bunch of NFS stuff. Someone told me (I'm no where near it) the console says something about /proc/sys/net/ipv4/.... ip_always_defrag is missing. Not sure if this has anything to do with the problem though. Couldn't find anything in kernel config about IP Always Defrag (like there was in 2.2.x).

I do need the NFS stuff, btw. There are two filesystems that need to be mounted. I have NFS client and server support (v2 and v3) compiled in.

Any help you guys could offer would be appreciated...

Thanks much,
Eric