On Nov 23, 2011, at 2:00 PM, [email protected] wrote: > Message: 1 > Date: Tue, 22 Nov 2011 19:14:11 -0700 > From: Chris Murphy <[email protected]> > Subject: diskutil and GUIDs > To: omniadmin OSX <[email protected]> > Message-ID: <[email protected]> > Content-Type: text/plain; charset=us-ascii > > Does anyone know of a tool to report the unique partition GUID for a > partition? > > The diskutil info command is apparently not cutting it. For non-Mac OS > filesystems it does not report a GUID at all, and for hfs+ partitions the > "Volume UUID" does not match the unique partition GUID in the GPT for that > partition. > > > > Example 1: > > diskutil info disk0s2 [a jhfs+ partition] > > returns a bunch of info including a "Volume UUID". But this UUID does not > match the GUID in the GPT at offset 16 for that partition, whereas the GUID > at offset 0 does correctly report the GUID as hfs+ partition type. (I am > aware the first three blocks of both GUIDs are byte-swapped when stored in > the GPT itself, so that's not the problem.) > > Example 2: > > diskutil info disk0sX [where X is the partition for any non-Mac OS > filesystem] > > returns somewhat less info including no "Volume UUID" at all. But even if it > did, apparently it wouldn't match the unique partition GUID in the GPT. > > Chris Murphy
Not sure if it would help but you might take a look at gdisk (GPT fdisk) http://www.rodsbooks.com/gdisk/ Best, Tim Roberts_______________________________________________ MacOSX-admin mailing list [email protected] http://www.omnigroup.com/mailman/listinfo/macosx-admin
