How can all users have permission to use and view iPhoto photos on my mid 2009 MacBook Pro running Yosemite?
Put the iphoto library on a directly connected external hard drive formatted Mac OS extended (journaled) with ownership ignored - iPhoto: Sharing libraries among multiple users - Apple Support
LN
Thanks Larry HN. I have a laptop and connecting an external drive would be too cumbersome. I wish their was some other way.
Next year the new Photos App probably will offer additional solutions
LN
You could share all photos you want others to see as Shared Photo Streams. You can have up to 100 shared photo streams.
See: iCloud: iCloud Photo Sharing FAQ
Just don't upload all photos at once, see: iCloud: Photo Stream limits
How can all users have permission to use and view iPhoto photos?
