What versions/distros hosting? What NBSD version booting? I've been 
trying against win32 and linux based for years and it barfs when the 
kernel goes to mount root. I've tried it against identical setups on 
half a dozen linux distros with the same results, well, I didn't verify 
what nfsd and version, but the config files were as specified in the 
netboot howto. Didn't get it to work until I set up NetBSD on a spare 
x86 machine and used that to host the NFS... I would host it off my 
running sparc, but it's got a smallish hard drive with about 5mb left on 
it. I've repeated testing with the newer kernels and obtained the same 
results. Of course, I could just have a collection of the worst software 
compatability issues on the planet too.. ;)

Jens Georg wrote:
> Thomas Pornin:
> 
>>On Fri, Jun 27, 2003 at 07:07:19AM -0700, Gerald Richter wrote:
>>
>>>Find a x86 machine to convert to a NetBSD boot server and transfer your 
>>>NFS stuff for this machine to it. My milage with the NetBSD kernel NFS 
>>>mounter is that it will only work with a NetBSD NFS server.
>>
>>I have positive evidence (i.e., it worked for me) that a FreeBSD NFS
>>server works also (and the server was an Alpha, not an x86).
> 
> 
> And even Linux NFS does
>