[komakino]

I will do some testing, however I cannot find any mention of ‘GPTFormat’ or ‘GPT’ or ‘GUID Partition Table’ in the man page for diskutil on my 10.4.4 system. I checked another 10.4.4 system and a machine running 10.4.3 Server and the man pages for diskutil are identical. No gpt mentioned anywhere in them.

However all of these systems do have the ‘gpt’ command installed which looks like it is the right tool for the task.

-Chris

[komakino]

That kernelthread article is excellent. I can’t wait for his book to come out.

Because the Intel Macs use EFI instead of Open Firmware and EFI can’t boot Apple Partition Map formatted drives (apparently) that means that in order for a disk to be bootable it has be be formatted with a GPT partition table.

Which begs the question, can PowerPC Macs boot from GPT formatted disks? It looks like they cannot. This means that at least for now it will not be possible to have one physical disk that can boot PowerPC and Intel Macs, even if the disk is partitioned with a PowerPC OS X and an Intel OS X.

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