Move your iPhoto 09 Library to an External Drive
Posted 05/18/2009 at 3:44pm
| by Roberto Baldwin
If you're like the fine folks here at Mac|Life, you spend way too much time taking pictures of random stuff and archiving it for later use. All these photos are taking a toll on our tiny MacBook Pro drives. If your internal drive is 20 percent photos, you got a problem. If 80 percent of those pics are of cats, you need psychological help.
Well we can't help you and your crazy cat lady/man ways, but we can't help you get your photos off your internal drive and onto another drive or an external drive.
1. Shut down iPhoto.

2. Find your iPhoto library, User>Pictures>iPhoto Library and copy it to the new drive.
3. Now rename the iPhoto Library in the original destination "iPhoto Library.Old"
4. Open iPhoto. You will be presented with a dialog box asking you to choose between "iPhoto Library" and "iPhoto Library.Old." Choose "iPhoto Library," that's the library you've moved to the external drive.
5. iPhoto should load all your photos. Before you get all delete happy, double check your photos. Maybe keep the file around for a few days. Just in case.
We moved our iPhoto Library to an 1TB Internal drive on our Mac Pro and on to a 512GB external we keep in our bag for our MacBook Pro. We also want to remind you that you should backup your iPhoto Library on a regular basis since it'll no longer be part of your Time Machine backup.
Note: In my desire to make sure everyone backs up their data, I completely forgot that Time Machine does indeed back up external drives. Just make sure you're using a drive seperate from your Time Machine drive.