Trouble trying to boot UEFI via PXE server.

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  • Spork Schivago
    Badcaps Legend
    • Mar 2012
    • 4734
    • United States of America

    #1

    Trouble trying to boot UEFI via PXE server.

    Hello,

    I'm trying to boot into WinPE using a PXE server for Windows 8.1 using tftpd64. The machine has a UEFI BIOS but I seem to be struggling. Has anyone done this before? I've successfully done this with a 64-bit Windows 7 machine. I have my BCD store setup properly I believe. I think the problem is the program I serve to the client. The UEFI machine doesn't appear to like pxeboot.n12. I believe that's for legacy BIOSes. I tried wdsmgfw.efi and I get somewheres but it times out and gives me an error message. I think wdsmgfw.efi might be meant for WDS on Windows Server 2008.

    I do have a legal copy of Windows Server 2008, I just didn't want to install it on a machine. I got it free from the Microsoft Academic Alliance.
    -- Law of Expanding Memory: Applications Will Also Expand Until RAM Is Full
  • Spork Schivago
    Badcaps Legend
    • Mar 2012
    • 4734
    • United States of America

    #2
    Re: Trouble trying to boot UEFI via PXE server.

    I got it! I copied C:\Program Files (x86)\Windows Kits\8.1\Assessment and Deployment Kit\Windows Preinstallation Environment\amd64\Media\EFI (and all subdirectories) with xcopy to my tftp server's Windows 8.1 directory: C:\Program Files\Tftpd64\win8.1_64\EFI

    Then I replaced c:\Program Files\Tftpd64\win8.1_64\EFI\Microsoft\Boot\BCD with my BCD store. Then I pointed my TFTP server to c:\Program Files\Tftpd64\win8.1_64\EFI\Boot\Bootx64.efi

    When I turned on the laptop, it loaded boot.sdi and then WinPE.wim! So I think I'm good to go.

    Now, it's just a matter of what partitions do I backup. Being UEFI, do I grab just the OS partition or some of the UEFI partitions as well? I planned on just grabbing the OS partition and replacing install.wim on the Windows 8.1 disc with my updated version.
    -- Law of Expanding Memory: Applications Will Also Expand Until RAM Is Full

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