EFI32 systems with 64 bit CPUs: Kernel mode?

Discussion in 'Mac OS X Lion (10.7)' started by zorinlynx, Feb 25, 2011.

  1. zorinlynx, Feb 25, 2011
    Last edited: Feb 25, 2011

    macrumors 68040


    May 31, 2007
    Florida, USA
    I'm curious, does 10.7 boot a 64 bit kernel on EFI32 based systems like the MacPro1,1? I'm just wondering if Apple resolved the issues that were keeping us from booting Snow Leopard in pure 64 bit mode on these machines.

    It'd be nice for everything to finally be 64 bit from front to back.
  2. macrumors member

    Jul 18, 2009
    Lion works fine on my 2006 Mac Pro1.1 but does not boot into 64-bit kernel mode.:(
  3. macrumors 6502a

    Antoni Nygaard

    Jun 23, 2009
    my Macbook Alu late 2008 boots 64 bit kernel, normally it boots 32. (Leopard, Snow Leopard)

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