Working through Pine's Programming book and got this error (complete at 
bottom):

Cross-device link -...(Errno::EXDEV)

Trying to read photos from a memory card to hard drive and rename them. 
Someone posted the same error on the book's errata page and I didn't 
see a response so though I better look elsewhere

gscar-computer:~ gscar$ ruby "/Users/gscar/Documents/Ruby/Pine-Learning 
to Script/RenamingYourPhotos\302\24711.5.y.rb"
What would you like to call this batch?
Testing

Downloading 3 files:
/Users/gscar/Documents/Ruby/Pine-Learning to 
Script/RenamingYourPhotos§11.5.y.rb:38:in `rename': Cross-device link - 
/Volumes/CANON_DC/DCIM/100CANON/IMG_2324.JPG or Testing01.jpg 
(Errno::EXDEV)
        from /Users/gscar/Documents/Ruby/Pine-Learning to 
Script/RenamingYourPhotos§11.5.y.rb:38
        from /Users/gscar/Documents/Ruby/Pine-Learning to 
Script/RenamingYourPhotos§11.5.y.rb:28:in `each'
        from /Users/gscar/Documents/Ruby/Pine-Learning to 
Script/RenamingYourPhotos§11.5.y.rb:28
=======
Line 28 is: picNames.each do |name| ॣLine 38 is: File.rename name, newName

Thanks for any help

Newbie