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slunav

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slunav

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May 29th, 2020 08:00

iPXE bootloader attempts to network boot from a different interface from the one configured for PXE

 
Hi,
 
I have a PowerEdge R640 server with the following NICs:
  • Broadcom 5720 with 4x 1GbE ports
  • Broadcom 57414 with 2x 25GbE SFP28

Using the iDRAC I configure the iDRAC Settings -> BIOS Setting -> Network Settings as follows:

pxe.png

 

However, the iPXE bootloaderattempts to network boot from a different interface from the one configured for PXE.

Has anyone experience this issue?

iDRAC version is: 4.10.10.10

BIOS version is: 2.6.4

Many thanks.


  • DELL-Josh Cr

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    Posted May 29th, 2020 14:00

    Hi,

    Is the other PXE location that it is trying to boot to on the same network?

  • slunav

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    Posted June 1st, 2020 00:00

     

    Hi,

    No, the other PXE location that is trying to boot is on a different network.

    Many thanks.

  • slunav

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    Posted June 1st, 2020 02:00

    Update:

    It’s attempting boot on a 1G interface instead of the 25G interface. Actually it attempts boot on all interfaces and we only get the right result by shutting down all other interfaces at the switch.

    Many thanks.

  • DELL-Josh Cr

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    Posted June 1st, 2020 09:00

    What is the boot order?

  • DELL-Josh Cr

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    Posted June 1st, 2020 12:00

    if you expand the uefi menu and it should show a boot order uncheck everything besides that nic.

  • slunav

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    Posted June 1st, 2020 12:00

    Hi,

    Here is what the iDRAC shows:

    boot-order-1.png

    boot-order-2.png

  • slunav

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    Posted June 1st, 2020 14:00

     

    Hi,

    That's the problem, I only see and select the 25GbE NIC as show in the picture:

    boot-order-3.png

    However, we see that all the 1GbE ports on the other Broadcom NIC attempt to PXE boot independently of this config.

    Any ideas why?

    Many thanks.

  • DELL-Josh Cr

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    Posted June 1st, 2020 14:00

    Will it give you the option to boot in the option rom for the NICs during post to try to turn it off there?

  • slunav

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    Posted June 2nd, 2020 01:00

    Hi,

    Please see the following screenshot:

    boot-2.png

    net0 to net3 are the 4x 1 GbE, which haven't been selected for PXE boot. net4 to net5 are the 2x 25 GbE.

    Despite the fact that we only enabled net4 for PXE boot, it attempts to network boot from all of them until it finally succeeds with net4:

    boot-4.png

    There was no option in POST to turn off PXE on the 1 GbE ports.

    Many thanks.

  • DELL-Josh Cr

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    Posted June 2nd, 2020 09:00

    I think your best option is to call phone support, it may need to be escalated.