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angelmb · Nov 8, 2007, 03:01 PM

Could be the Apple Partition Map the culprit for an external USB2 hard disk to be too slow booting the Mac? I understand a FireWire 400 d2 is faster than the USB2 LaCie LEGO when it comes to move-read-write a bunch of tiny files (like when booting the OS) but I guess the external hard disk aimed to boot an intel Mac would have a GUID Partition Table instead of the APM… am I right?

In a nutshell, when booting a Mac from…

LaCie d2 FireWire (APM) attached to a MDD --> speedy
LaCie LEGO USB2 (APM) attached to a 24" intel iMac --> slow

megasad · Nov 8, 2007, 03:57 PM

? It's far more likely because the LEGO drive is connected via USB and the d2 is via FireWire, rather than the partition scheme.

angelmb · Nov 9, 2007, 04:10 PM

Sure FireWire 400 is way speedier than USB2, but I think 'this' USB2 speed is ridiculous so to speak… actually I don't know how much booting from an Apple Partition Map matters when it comes to intel Macs though… I mean, if that is all USB2 is capable of… well, what a joke.