<div dir="ltr"><div>Hello Jorg. As you know I have worked a lot with Supermicro machines.</div><div>I also installed Intel machines for Greenwich University, so I have experience of setting up IPMI on them.</div><div>I will take time to try to understand your problem!</div><div>Also Intel provides excellent documentation for all its products. Really. But you must get the correct part number and search for it.</div><div>I really recommend finding the BMC manual, as I recall that made things a lot clearer.<br></div><div><br></div><div>One quick question - are you using the on-board ethernet interface for IPMI or are you using the additional hardware module which has its own ethernet port?</div><div><br></div><div> > It also has a InfiniBand card which does allow booting from it. <br></div><div>You can PXE boot over a Mellanox Infiniband card. As you probably know this involves installing extra firmware on the card.</div><div>In my last job we had an IB only cluster, so booting over IB had to work!</div><div>I guess you do nto need to flash the card, but to be honest running the utility is not scary. You just have to get the exact firmware for your card.</div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On 21 June 2018 at 11:20, Tony Brian Albers <span dir="ltr"><<a href="mailto:tba@kb.dk" target="_blank">tba@kb.dk</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Does the BMC itself know its own hostname?<br>
<br>
/tony<br>
<div class="HOEnZb"><div class="h5"><br>
On 21/06/18 11:13, Jörg Saßmannshausen wrote:<br>
> Dear all,<br>
> <br>
> I got a bit of a confusing situation with the BMC of some Intel motherboards<br>
> which we recently purchased and I am not quite sure what to make out of it.<br>
> <br>
> We have install a generic user via the IPMI commands on the compute nodes and<br>
> I can access the BMC remotely, again via the IPMI command like this:<br>
> <br>
> $ ipmitool -H node105-bmc -U username -P xxx power status<br>
> <br>
> This is working, Also, this works:<br>
> <br>
> $ ipmitool -H 10.0.1.105 -U username -P xxx power status<br>
> <br>
> A nslookup of node105-bmc gives the right IP address as well.<br>
> <br>
> However, if I want to use the GUI for the BMC, i.e. opening my browser and<br>
> put:<br>
> <br>
> <a href="https://node105-bmc" rel="noreferrer" target="_blank">https://node105-bmc</a><br>
> <br>
> in the URL, I get the loging page When I enter my login credentials then,<br>
> which are the same as above, I have a problem to log in *IF* I am using the<br>
> hostname as address but not *IF* I am using the IP address. Just to add to the<br>
> confusion more, on one node the hostname was working.<br>
> With problems I mean the browser tells me my login credentials are wrong which<br>
> does not happen when I am using the IP address.<br>
> Also, I can only use https and not http and for now I got the generic self<br>
> signed certificates. I want to change them at one point but right now that is<br>
> more on the bottom of my to-do list.<br>
> <br>
> I find that really odd and I am not quite sure what is going on here. With all<br>
> the Supermicro kit I once had I never had these issues before. I was able to<br>
> log in regardless of using the hostname or IP address.<br>
> So clearly Intel does something here Supermicro did not (at the time).<br>
> <br>
> The boards in question are Intel S2600BPB ones.<br>
> <br>
> Has anybody seen this before?<br>
> <br>
> I got a second issue with these boards. I usually do the normal PXE/NFS boot<br>
> and the setup is working well for the other, older Supermicro machines.<br>
> However, with the new Intel ones, this is crashing.<br>
> The procedure is you are selecting in the boot-menu you want to do a PXE boot<br>
> and not boot from the local hard drive.<br>
> It then boots the initramfs which seems to be fine. From what I can see, both<br>
> during the boot process and from the log files of the DHCP-server, it is<br>
> getting the right IP address.<br>
> However, when the initramfs hands over to the kernel, it crashes with:<br>
> kernel panic! attempt to kill init<br>
> and you literally have to pull the plug on the machine, i.e. a hard reset.<br>
> <br>
> The only time I have seen that was when I did not specify the NIC and when I<br>
> had two NICs, it somehow decided to use the other one. I fixed that problem by<br>
> defining the interface in the boot-arguments and also the second NIC is not<br>
> connected anyway. It also has a InfiniBand card which does allow booting from<br>
> it. Again, it is not connected so in theory it should not matter.<br>
> <br>
> I am stuck here. I am using a 4.x kernel for the PXE boot, so a fairly recent<br>
> one. As I said, it works for the older machines but not for the newer ones.<br>
> <br>
> I upgraded the whole PXE/NFS boot and that is not working too.<br>
> <br>
> Does anybody have any ideas here?<br>
> <br>
> Sorry for asking 2 questions in one email but as they are related I hope that<br>
> is ok.<br>
> <br>
> All the best from a sunny London<br>
> <br>
> Jörg<br>
> <br>
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> <br>
<br>
<br>
</div></div><span class="HOEnZb"><font color="#888888">-- <br>
Tony Albers<br>
Systems administrator, IT-development<br>
Royal Danish Library, Victor Albecks Vej 1, 8000 Aarhus C, Denmark.<br>
Tel: +45 2566 2383 / +45 8946 2316<br>
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