Unable to select 'iCloud Photo Library' after restoring Mac
Hello everyone, this is my first time asking a question here.
I have a MacBook Pro with a photo library of 57,214 photos (317GB) stored on an external hard drive. I recently uploaded all of these photos to iCloud Library (it took 5 days!) but just yesterday I had to do a clean OS install. Since then, I've been trying to set up Photos again.
My library on the HD is set as the system library, but when I select 'iCloud Photo Library' with the 'Download originals to this Mac' option, it selects it, starts to upload, then cancels it out. If I try to select it again, the same thing happens.
Two minutes later...
Can anyone advise what I can do? Do I need to delete the photos from the Cloud and try again?
MacBook Pro with Retina display, OS X El Capitan (10.11.6)