How does iCloud Photo Library handle multiple mac photos libraries?

[tadnishida]

What will happen if I turn on iCloud photo library on a mac that has several local libraries set up. I only want the new one to sync to the cloud. I plan to transfer the good ones from the old library at a later date.

 

[Bigeric23]

This should help you:

iCloud Photo Library ? Everything you need to know! | iMore

 

[tadnishida]

Lucky for me Mac Break Weekly had Don McAllister on the show this week. He said iCloud photos only syncs with the the system library.