iPhoto is a part of iLife software application suite, which not only helps you organize and edit your photos, but also lets you get more from these photos by making photo books, greeting cards and slideshows. iPhoto will generates a iPhoto Library folder or package that contains imported photos and any albums you've added using iPhoto.

DO NOT IMPORT A LIBRARY INTO ANOTHER LIBRARY! Copy the old library into the Pictures folder on your new iMac. If you have a new library there then move it to the Trash bin beforehand. Then launch iPhoto and it will open the old library and convert it to the newer version if necessary. There is no importing necssary. Like iPhoto, Photos can only load one library at a time and can only convert libraries to its format. You can import a library other than the default one you used with iPhoto into Photos. Yosemite OSX Macbook pro, iMac, macbook air, macbook, macbook retina display, macbook retina display 2, mac pro, iMac retina 5k display, mac mini,apple lapt.

If you want to move iPhoto Library to a new location or new computer, you must move the entire iPhoto Library folder or package and then identify its new location in iPhoto.

How to Move iPhoto Library to a New Location / Computer

Now you want to move iPhoto Library to a new location in internal drive of Mac computer (frankly, I don't know why, maybe you just want). Other cases include that you run out of hard drive space in Mac (Mountain Lion included) due to the high resolution photos taken by camera, or you just bought a new Mac computer (Mac OS X 10.11 included). Well, see how to move iPhoto Library to a new location or your new computer (using external hard drive). The solution is very similar.

1. Exit iPhoto if open.

2. Open your Pictures folder and select the iPhoto Library.

3a.For a new location: Drag the iPhoto Library folder or package to its new location.

3b.For a new computer: Connect your external hard drive which will display on Finder. Drag the iPhoto Library folder or package to external hard drive.

4. Now open iPhoto (the new computer for moving iPhoto Library to a new computer). Hold down the Option key on the keyboard, and keep the Option key held down until you are prompted to create or choose an iPhoto library.

5. Click Choose Library.

6. Locate and select the iPhoto Library you moved in step 3.

7. Now you will see the photos in the new iPhoto Library or in a new computer's iPhoto Library.

8. Delete the original iPhoto Library if necessary.

9. Moving iPhoto Library complete.

Note: If deleting the old library from the computer's hard drive makes you nervous, you can backup iPhoto to CD/DVD by clicking Share -> Burn before you erase anything.

More about Moving iPhoto Library:

1. The iPhoto library thumbnail is different between pre-iPhoto '08 and post-iPhoto '08. The iPhoto library in iPhoto '08 or later is called a package. See below:

2. You could also move iPhoto library to an external hard drive for backup purpose.

3. Move, delete, rename, or change files or folders in the iPhoto Library folder may make you unable to see your pictures. To slove this problem, you can restore your iPhoto library backup (if exists), or change it back to the original one.

4.There are also applications to help you move iPhoto Library safely, such as iPhotoLibraryManager or iPhotoBuddy.

Prepare your external drive

You can store your library on an external storage device, such as a USB or Thunderbolt drive formatted as APFS or Mac OS Extended (Journaled). However, you can't move your library to a disk that's used for Time Machine backups.

To prevent data loss, Apple doesn't recommend storing photo libraries on external storage devices like SD cards and USB flash drives, or drives that are shared on a network.

Move your Photos library to an external storage device

1. Quit Photos.
2. In the Finder, go to the external drive where you want to store your library.
3. In another Finder window, find your library. The default location is Users > [username] > Pictures, and it's named Photos Library.
4. Drag your library to its new location on the external drive. If you see an error, select your external drive's icon in the Finder, then choose File > Get Info. If the information under Sharing & Permissions isn't visible, click the triangle , then make sure the 'Ignore ownership on this volume' checkbox is selected. If it's not selected, click the lock button to unlock it, enter an administrator name and password, then select the checkbox.*
   
5. After the move is finished, double-click Photos Library in its new location to open it.
6. If you use iCloud Photo Library, designate this library as the System Photo Library.

Delete original library to save space

After you open your library from its new location and make sure that it works as expected, you can delete the library from its original location.

In a Finder window, go back to your Pictures folder (or whichever folder you copied your library from) and move Photos Library to the trash. Then choose Finder > Empty Trash to delete the library and reclaim disk space.

Open another Photos library

Import Old Iphoto Library On Mac Os

If you have multiple libraries, here's how to open a different one:

1. Quit Photos.
2. Press and hold the Option key while you open Photos.
3. Select the library that you want to open, then click Choose Library.
   

Import Old Iphoto Library To New Mac

Photos uses this library until you open a different one.

Learn more

If you have a permissions issue with your library, you might be able to resolve the issue by using the Photos library repair tool.

Import Old Iphoto Library On Mac Free

* If the volume isn't formatted APFS or Mac OS Extended (Journaled), or has been used for Time Machine backups but hasn't been erased, this checkbox will either not be present, or won't be selectable after unlocking. Erase and reformat the drive for this option to be available.