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Create HFS+ and FAT32 partitions on one external drive.
Authored by: moritzh on Mar 05, '04 06:36:01PM
You are right, the OS version probably matters indeed. In fact, it appears quite obvious to me now that diskutil must have changed considerably from any previous version to that in 10.3.X because in 10.3.X it now also handles the sparse image files that FileVault uses (whcih is a major enhancement). (The man page for diskutil in 10.3.2 gives 24 Jan 2004 as the date.)

I don't have a machine with anything before 10.3.2 on it to test, but my guess is that full support for

MBRFormat
has indeed been included only in the 10.3 version.

As laid out in previous posts, implementing sth that handles MBRFormat correctly must be quite difficult which could be a reason that it was fully implemented only in 10.3.

BTW, when considering switching to 10.3, make sure you update to the most recent version because the changes made to the FileVault features after the initial release of 10.3 most likey also affected diskutil.

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