Here's what I've done:
Now I've lost the links between the image thumbnails in my catalog and the original images. A question mark now appears on every thumbnail!
It looks like the problem is that all the image file locations start with "/users/firstname/Pictures/Lightroom Album/...", but I changed my account username to "firstnamelastname".
Can I redefine the directory structure/path for all the images in a catalog at once? Or some way that I can trick Lightroom into looking in "/users/firstnamelastname/Pictures/..." instead?
I can't even begin to contemplate manually going through 23,000 images to locate the files on my new internal drive. Help!
I'm using LR 2.7 on Mac OS X 10.6.8.
As you said
It looks like the problem is that all the image file locations start with "/users/firstname/Pictures/Lightroom Album/...", but I changed my account username to "firstnamelastnam
Lightroom no longer knows where your Files are.You need to relocate the Parent Folder (if all pictures are on the same drive) to get all your Pictures re linked in the catalog (Not all Pictures individually) .See Adobe Lightroom - Find moved or missing files and folders
Thanks! That link was really helpful, and re-linking each folder was quick and easy.