On Jun 25, 2007, at 7:23 PM, Matt Johnston wrote:

On Mon, Jun 25, 2007 at 04:42:56PM +1200, David G. Koontz wrote:
  Apple (mis)uses
TPM to unsuccessfully prevent OS X from running on non-Apple Hardware. All Apple on Intel machines have TPM, that's what 6 percent of new PCs?

To nit pick, the TPM is only present in some Apple Intel
machines and isn't used in any of them. See

Their OS decryption key is just stored in normal firmware,
unprotected AIUI.

They've apparently stopped shipping TPMs. There isn't one on my MacBook Pro from last November, and it is missing on my wife's new Santa Rosa machine.

If you want to see if a machine has one, then the command:

sudo ioreg -w 0 | grep -i tpm

should give something meaningful. Mine reports the existence of ApplePCISlotPM, but that's not the same thing.


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