Anybody have this error EFI PXE Boot K200 _unseccessful.hell (Unsupported Option)0) PXE-E23: Client recieved TFTP error from server?

I am receiving the following error when PXE booting EFI in VMware. Any input would be much appreciated. 

_unseccessful.hell (Unsupported Option)0) PXE-E23: Client received TFTP error from the server

Thank you.

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Answers (1)

Posted by: Channeler 5 years ago
Red Belt

Make sure the VM has at least 4GB of RAM.

Make sure the NIC adapter type is E1000.

Make sure your DHCP is properly configured to handle UEFI PXE requests:


Review the TFTP logs in the KACE SDA, to determine if the KACE SDA is being contacted or not.

  • I'm verifying the DHCP settings again and looking at the logs but so far everything is correct.

    You are able to PXE into the K2000 out of VMware correct? - agahlbeck 4 years ago
    • Correct, be aware of:

      https://support.quest.com/kace-systems-deployment-appliance/kb/232911/unable-to-pxe-boot-vmware-vms-to-legacy-ipxe-with-more-than-one-vcpu - Channeler 4 years ago
      • This is our DHCP config that works for all workstations and work on VMware before we switched to efi. Any ideas?

        # New PXE boot for KACE
        next-server ;
        filename "ipxe.efi";
        option tftp-server-name "";
        option bootfile-name "ipxe.efi"; - agahlbeck 4 years ago
      • next-server; ??
        And what about the KACE IP?

        See the examples outlined here:

        https://support.quest.com/kace-systems-deployment-appliance/kb/112037/setting-up-non-microsoft-dhcp-server-cisco-solaris-and-others- - Channeler 4 years ago
  • Channeler,

    Thank you for the response, I have the IPs in the config. That current config works with PXE on anything except through VMware. I am reviewing the link. Thanks again for the help. - agahlbeck 4 years ago
    • It looks like a VM configuration issue....



      Do you see entries inside the TFTP log being printed when you try to boot? - Channeler 4 years ago
      • Thank you for the help but not sure what's wrong with the VM config. Also not seeing anything on the TFTP logs. - agahlbeck 4 years ago
    • If the TFTP logs are empty or idle, your DHCP is not sending the Devices\VMs to the KACE SDA at all. - Channeler 4 years ago

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