Yan,

Please do what was suggested to troubleshoot tftp, this is the only solution and reinstalling will not help. The message you get is quite typical from a misconfigured pxelinux looking files at the wrong location and thus not finding them... which is exactly what the message is saying.

The easiest is to find a tftp client and try the things manually. But it seems there is no tftp client in standard SL distrib, probably you can find one on the net.

Else check your configuration. If you put the tftp stuff under /tftpboot, you need to have a line like the following in your /etc/xinetd.d/tftp:

       server_args             = -s /tftpboot

At LAL, we put the PXE stuff in /tftpboot/quattor. Here is the content of this directory:

[r...@quattorsrv RPMS]# ls /tftpboot/quattor/
pxelinux.0      sl304_i386        sl420_i386    sl440_x86_64  sl510_x86_64
pxelinux.cfg    sl305_i386        sl420_x86_64  sl450_x86_64  sl520_x86_64
rescue          sl305_i386.saved  sl430_i386    sl460_i386
rhel305_x86_64  sl307_i386        sl430_x86_64  sl460_x86_64
sl303_i386      sl308_i386        sl440_i386    sl500_x86_64

pxelinux.cfg contents is managed by aii-shellfe command but you need to ensure you defined the following parameter in /etc/aii/aii-shellfe.conf:

nbpdir = /tftpboot/quattor/pxelinux.cfg

Michel

--On vendredi 12 décembre 2008 23:24 +0800 Yan Xiaofei <ya...@ihep.ac.cn> wrote:

Dear ALL

I got problem when I use SL52 for "dhcp + tftp + http" server to install
os for other client machine. But it have some problem.
The client machine could get ip address from dhcp server. And get the
boot loader file(pxelinux.0) from tftp server. But it could not continue
to get the rest of the files.
The error message is :
The message is :
PXE entry point found (we hope) at 97BC:00DA
My IP address seems to be C0A83825 192.168.56.37
Ip=192.168.56.37:0.0.0.0:192.168.56.1:255.255.255.0
TFTP prefix:
Trying to load:pxelinux.cfg/01-00-22-19-82-6f-27    (This step is very
slowly) Trying to load:pxelinux.cfg/C0A83825             (This step is
very slowly)

I have been use pxe for os install lot of time on sl4x. But never
successful on sl5x. I test sl52_i386 and sl52_x86_64. It was the same
problem.

This was the log message on tftp and dhcp server :


Dec 12 21:56:52 quattor dhcpd: DHCPDISCOVER from 00:1f:29:ef:36:28 via
202.122.33.1 Dec 12 21:56:52 quattor dhcpd: DHCPOFFER on 202.122.33.28 to
00:1f:29:ef:36:28 via 202.122.33.1 Dec 12 21:56:52 quattor dhcpd:
DHCPDISCOVER from 00:1f:29:ef:36:28 via 202.122.33.1 Dec 12 21:56:52
quattor dhcpd: DHCPOFFER on 202.122.33.28 to 00:1f:29:ef:36:28 via
202.122.33.1 Dec 12 21:56:52 quattor dhcpd: DHCPDISCOVER from
00:1f:29:ef:36:28 via 202.122.33.8 Dec 12 21:56:52 quattor dhcpd:
DHCPOFFER on 202.122.33.28 to 00:1f:29:ef:36:28 via 202.122.33.8 Dec 12
21:56:56 quattor dhcpd: DHCPREQUEST for 202.122.33.28 (192.168.51.99)
from 00:1f:29:ef:36:28 via 202.122.33.1 Dec 12 21:56:56 quattor dhcpd:
DHCPACK on 202.122.33.28 to 00:1f:29:ef:36:28 via 202.122.33.1 Dec 12
21:56:56 quattor dhcpd: DHCPREQUEST for 202.122.33.28 (192.168.51.99)
from 00:1f:29:ef:36:28 via 202.122.33.1 Dec 12 21:56:56 quattor dhcpd:
DHCPACK on 202.122.33.28 to 00:1f:29:ef:36:28 via 202.122.33.1 Dec 12
21:56:56 quattor dhcpd: DHCPREQUEST for 202.122.33.28 (192.168.51.99)
from 00:1f:29:ef:36:28 via 202.122.33.8 Dec 12 21:56:56 quattor dhcpd:
DHCPACK on 202.122.33.28 to 00:1f:29:ef:36:28 via 202.122.33.8 Dec 12
21:56:56 quattor in.tftpd[23001]: RRQ from 202.122.33.28 filename
pxelinux.0 Dec 12 21:56:56 quattor in.tftpd[23001]: tftp: client does not
accept options Dec 12 21:56:56 quattor in.tftpd[23002]: RRQ from
202.122.33.28 filename pxelinux.0


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----------- Yan Xiaofei                                   Building: 209
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