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Old 04-16-2010, 09:57 AM
salobaas salobaas is offline
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Join Date: Dec 2007
Posts: 6
Setting volume UUID...

Hi,

I've the following issue. I use Aperture to manage my photos. The photos are referenced in the Aperture library (not included). Aperture saves the volume UUID of the volume containing the photos for each photo in the library. For offsite backup I rsync both the Aperture library and all photos to a machine at work. On both sides the logical volume names containing the photos are the same (/Volumes/photos), but the UUID's are not. Now when starting Aperture it says it cannot find the referenced photos and I've to "relocate" all photos. With more than 50k photos this takes several hours (on a big MacPro). Now ideally I would like to set the UUID of the offsite /Volumes/photos to be the same as the /Volumes/photos at home. In another thread on this forum I found this suggestion:

On home machine:
/Applications/SuperDuper\!.app/Contents/MacOS/SDDiskTool -g /Volumes/photos
E724B26D74FCEFD4

On work machine:
sudo /Applications/SuperDuper\!.app/Contents/MacOS/SDDiskTool -s E724B26D74FCEFD4 /Volumes/photos
/Applications/SuperDuper\!.app/Contents/MacOS/SDDiskTool -g /Volumes/photos
E724B26D74FCEFD4

This seems to work great, except that it does not fool Aperture. And actually this UUID does not correspond to the UUID shown when doing:

diskutil info /Volumes/photos
...
...
Volume UUID: 7C589D59-7A80-3610-B4D6-691BBA0C702B
...

So what UUID is SDDiskTool setting and how can I change the real Volume UUID?

Many thanks for any suggestions.

Cheers, Fons.
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