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Bootblock not loading?



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I'm somewhat new to the whole process of diskless clients, so forgive me
if I've made an obvious mistake somewhere...

Short version:
I have things set up as per the netboot instructions, but when I attempt
to boot from the netboot floppy, it connects to the bootp server and then
fails with the error, "cannot load bootblock from disk".

Long Version:
I'm running Linux 2.0.30 on an ethernet network.  I have a computer that
I'd like to boot from the network, since I can't do anything to the hard
drive.  I downloaded netboot from sunsite.unc.edu, and followed the
instructions for setting things up.  I configured things to have the root
filesystem mounted via NFS.  I've set up the NFS server and /etc/exports
on the Linux server, I've added bootpd and tftpd in /etc/inetd.conf, and
I've set things up in /etc/bootptab.  Watching from tcpdump, the diskless
client sends a single bootp request and receives a correct bootp packet
from the server.  At that point, the error message appears.  No tftp
requests are generated.  

What could be going wrong, and what can I do to fix it?

                                ---------------
/* You are not expected to understand this */
                       -- Unix source code
                                ---------------
                                 Phil Gregory
                                     DNRC
                              phil_g@geocities.com
                        -------------------------------
                         (E-mail me for my public key)


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