Hi guys So, we have OSCAR-1.3 on Linux RedHat-7.2, with D-LINK DFE-550TX NIC's which are PXE-2.0 compatible and a CHRONOS switching hub and we are trying to build a cluster. All steps up to and including step 4 go off without a hitch. We have as of now NOT been able to network boot our clients, however !
I think I have tried everything - network booting using PXE does not work and network booting with a floppy has given us the same error as the former method. RH-7.2 DOES support our cards. We are now very stuck as to what to do, since I think we have exhausted all options and are obviously missing something. Included is our previously posted message (see below). What confuses me is that when it is booting, the machine seems to be listening for the DHCP broadcast on the loopback device lo, instead of the NIC, eth0. Surely this is not right ? Or is it ? If not, how can we change it ? When we build the image, is it correct to select the dynamic_dhcp option as our IP assignment method, or should we choose static_dhcp, or static ? At the moment, we have a standalone toy cluster of 2 clients and a server... We are getting quite desperate at this stage, so any insight would be greatly appreciated -------------------------------------------------------------------- Hi Mike, thanks for answering so soon. I read your mail and decided to ./start_over Now, we get the same error, but let me be more explicit. Again, we are using RedHat-7.2 and OSCAR-1.3 We have PXE-compatible cards and we are using PXE to boot the clients. PXE works fine, I think, since we get the PXE menu option and Linux's kudzu had no problem identitying the cards. So, I am assuming now that the problem is not hardware-based. Let me tell you what we did. After ./start_over, we once again followed the step-by-step instruction manual. Step 1 went off without a hitch. Step 2 (build SIS image) : I chose the standard rpmlist and partition files and set the IP assignment method to dynamic DHCP, asking the machines to shutdown after install. that all worked fine Step 3 : we have at present two nodes, so they were defined as oscarnode1.cluster and oscarnode2.cluster and given IP adresses of 192.168.1.2 and 191.168.1.3, because the server is 192.168.1.1. No errors were reported Step 4 : MAC adresses were seen, collected and assigned to nodes, no problems. After collecting MAC adresses, we configured the DHCP server (ok) and then rebooted Now, is where the problems started When the clients were booted, they correctly booted from the NIC (because all other options were turned off in the BIOS) and saw a kernel and then looked like they were happily booting. The first wierd thing they did was try to look for a .cfg file in /floppy (even though we have no floppy drives). Then, they stared listening on the loopback device and (obviously ?) didn't hear anything. Then, another thing I thought wasn't right was that it had the wrong netmask (I told it 255.255.255.0) - we got this message: ================================================ DHCPDISCOVER on lo to 255.255.255.255 port 67 interval 8 (and some other intervals) NO DHCPOFFERS RECEIVED No working leases in persistent database I couldn't configure the network interface using DHCP Your auto-install has failed =============================================== When we rebooted the machines, there was nothing installed, which was not a surprise. So, we could not proceed to step 5. What have I left out here ? thanks in advance, -- Bruce Becker, PhD student - Department of Physics University of Cape Town Room 405, R.W. James Building, UCT University Avenue North Private Bag RONDEBOSCH 7700 tel (w) +27 21 650 3356 tel (m) +27 82 537 9425 fax +27 21 650 3342 http://qgp3.phy.uct.ac.za/index_becker.html ------------------------------------------------------- This sf.net email is sponsored by: OSDN - Tired of that same old cell phone? Get a new here for FREE! https://www.inphonic.com/r.asp?r=sourceforge1&refcode1=vs3390 _______________________________________________ Oscar-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/oscar-users
