Hi Berry, This is output i get when the TC is booting. Dec 29 16:50:03 ps02 dhcpd: Sending on Socket/fallback/fallback-net Dec 29 16:51:11 ps02 dhcpd: DHCPDISCOVER from 00:80:64:7c:75:6a via ltspbr0 Dec 29 16:51:11 ps02 dhcpd: DHCPOFFER on 172.31.100.3 to 00:80:64:7c:75:6a via ltspbr0 Dec 29 16:51:13 ps02 dhcpd: DHCPREQUEST for 172.31.100.3 (172.31.100.254) from 00:80:64:7c:75:6a via ltspbr0 Dec 29 16:51:13 ps02 dhcpd: DHCPACK on 172.31.100.3 to 00:80:64:7c:75:6a via ltspbr0 Dec 29 16:51:13 ps02 xinetd[1721]: START: tftp pid=10536 from=172.31.100.3 Dec 29 16:51:13 ps02 in.tftpd[10537]: tftp: client does not accept options for the link i was go there and i was followed the steps. i was try to other TC still same. Thanks Berry, <div class="gmail_quote">On Thu, Dec 29, 2011 at 12:00 AM, <<a href="mailto:k12osn-request@redhat.com">k12osn-request@redhat.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"> Send K12OSN mailing list submissions to <a href="mailto:k12osn@redhat.com">k12osn@redhat.com</a> To subscribe or unsubscribe via the World Wide Web, visit <a href="https://www.redhat.com/mailman/listinfo/k12osn" target="_blank">https://www.redhat.com/mailman/listinfo/k12osn</a> or, via email, send a message with subject or body 'help' to <a href="mailto:k12osn-request@redhat.com">k12osn-request@redhat.com</a> You can reach the person managing the list at <a href="mailto:k12osn-owner@redhat.com">k12osn-owner@redhat.com</a> When replying, please edit your Subject line so it is more specific than "Re: Contents of K12OSN digest..." Today's Topics: 1. Re: Error When Install LTSP 5 on Centos 6.1 (Barry R Cisna) ---------------------------------------------------------------------- Message: 1 Date: Tue, 27 Dec 2011 15:14:14 -0600 From: Barry R Cisna <<a href="mailto:brcisna@eazylivin.net">brcisna@eazylivin.net</a>> To: K12LTSP <<a href="mailto:k12osn@redhat.com">k12osn@redhat.com</a>> Subject: Re: [K12OSN] Error When Install LTSP 5 on Centos 6.1 Message-ID: <1325020454.4857.28.camel@localhost.localdomain> Content-Type: text/plain Amanda, With the little information you provided in your post in regards to K12LINUX TC kernel panic,it is hard to narrow down possible " what it could be's". A few things to consider: On your new K12LINUX network is this an isolated network? In other words there can not be another dhcp server on this network? Are you using an unmanaged switch on this network. Have you tried booting 3-4 different hardwared TC's, to verify it isn't a funky nic problem. On the K12LINUX server before booting a TC open a terminal and run the command: tail -f /var/log/messages Then boot a couple TC's and copy / paste the output of this terminal back here,and someone may see some clues in this dialog. A starting point to narrow a few things down, anyway. Just in case you didn't see this , this may give you some clues as well. <a href="https://fedorahosted.org/k12linux/wiki/InstallGuide" target="_blank">https://fedorahosted.org/k12linux/wiki/InstallGuide</a> Take Care, Barry ------------------------------ _______________________________________________ K12OSN mailing list <a href="mailto:K12OSN@redhat.com">K12OSN@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/k12osn" target="_blank">https://www.redhat.com/mailman/listinfo/k12osn</a> End of K12OSN Digest, Vol 94, Issue 11 ************************************** </blockquote></div> -- Thank's Me