Hi Steve On Jan 9, 2006, at 10:20 PM, Kan Tok wrote:
The machine does indeed have 2 nics. I have the BIOS set to only enable PXE boot on planar ethernet 2. And like I said it seems to grab the first set of dhcp offers just fine (I get past the point where you see the message.txt menu screen and the initrd and kernel load). But, you're saying there might be a problem after that with some sort of NIC confusion? Would ethereal be able to detect this sort of problem, would the confused nic send out its mac address to view in its response? I'll take a look at the BIOS and see if it's possible to disable the first NIC, but I don't remember there being an option to explicitly shutdown one of the nics (only enabling or disabling PXE booting for each card, would enabling both of them do anything?). Is there some other way to achieve this effect for purposes of having only one nic (in my case the second nic) enabled to ensure it's the only one alive?
What I am saying is the BIOS sees them in one order - for arguments sake lets say first and second, and lets say you have your ethernet cable connected to the first, and it PXE boots fine. Now when the kernel is loaded, it scans the PCI bus in the opposite order and so sends it's dhcp request out the second nic (whether you have an ethernet cable connected or not) and thats why it fails. You see this on some hardware when switching from a 2.4 to a 2.6 kernel btw.
It's easy to test. Just plug both ethernets into your network and the first dhcp request should have a different mac address than the second, but the process should work.
If you find this is the case, try 3.6.3 which has a 2.6 kernel, and it may just see the nics in the same order as the bios.
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