WinPe and BIOS Uefi



  • winpe.iso ( windows 8.1 and 10 ) does not start with machines with UEFI Bios only,
    the IPXE and the IPXE menù start correctly with the PC with Bios UEFI , but when I select the iso, after download it starts correctly ,
    memdisk work fine but at the next steps return the message " file missing … )

    I tried the same ISO deployed with wimboot ( with legacy bios works fine ) files but I have the same error.
    it’s necessary rebuild the winpe.iso with internal changes ?

    Regards


  • Developer

    @zingaro Can we mark this solved? I guess sudburr’s hint is spot on.



  • ok !
    thanks a lot ,
    it’s a different ISO build ,
    I will try rebuild a new iso and test it !

    Regards



  • When you mastered your 64bit PE did you master it for Legacy AND UEFI booting?

    To Create Legacy Bootable x86 .ISO
    ----------------------------------
    "oscdimg.exe -m -u2 -b"<path to source files>\boot\etfsboot.com" "<path to source files>" "C:\output\new86.iso"
    
    
    To Create Legacy/UEFI Bootable x64 .ISO
    ---------------------------------------
    "oscdimg.exe" -m -o -u2 -udfver102 -bootdata:2#p0,e,b"<path to source files>\boot\etfsboot.com"#pEF,e,b"<path to source files>\efi\microsoft\boot\efisys.bin" "<path to source files>" "C:\output\new64.iso"
    
    

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