Fog, Legacy boot, and UEFI, Oh my!



  • Let me preface this: I don’t know if what I want is possible. That’s why I brought it here.

    Soon, we will be getting new computers. With that means superhappyfuntimes, Not the least of which is UEFI. I can set the computers to use Legacy boot and everything with no problem, but UEFI is much faster. Can I have these three things together:

    1. FOG Imaging and management (PXE as first boot option)
    2. UEFI clients
    3. Legacy clients

    Or do I need to suck it up, take the extra 20 seconds of boot time, and try to work with that?


  • Senior Developer

    I don’t know.

    There’s lots of documentation on the internet on how to do it, but I’ve never tried any of the steps.

    Maybe start there? Specifically: dhcp user class ipxe?



  • Alright, I’m going to bump this to try again.

    I need FOG to feed the .efi file to UEFI clients and the .kkpxe file to regular clients. How do I set this up?



  • I’m on FOG 2072. (That was probably important)

    Anyway, UEFI clients don’t seem to boot PXE with the efi PXE client, which would be helpful. I really like the remote wake/task start and I use it quite often. It’d be nice if I could use it.

    EDIT: I’ve upgraded to FOG 2637. My UEFI test machine just hangs at “>>Start PXE over IPv4”


  • Senior Developer

    so, before imaging, you set network boot to legacy mode.

    Disable secure boot.

    Perform image task (upload/download)

    On reboot, re-enable secure boot, make disk first to boot.

    Presto, you should work.

    A little extra work, but it should work.


  • Senior Developer

    You can have it all and then some, though one requirement for UEFI booting, before/after imaging, enable/disable secure boot.


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