August 28, 2009

Snow Leopard Defaults to 32-bit Kernel

Apple has advertised Snow Leopard as full 64-bit operating system, but by default Snow Leopard loads 32-bit kernel, despite running 64-bit applications. Users can boot into 64-bit kernel by holding down the “6” and “4” keys during boot time, but once they restart the kernel will switch back to 32-bit. There is no permanent GUI option to make 64-bit kernel default except on X-Serves that by default boot into 64-bit kernel.
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