Loading backup hardrive on to LR without creating duplicates

[guido.coza]

I would like to load my Back-up hard drive into LR As per usual a back-up should have the same than the original.! As far as I understand the way LR works, the program would load the back-up pics as new pics into the catalog. However this would mess-up the picture count totally. One of the reasons I would like to load the back-up drive is to see if all pics are in the right folder(at least by number) and if all folders are backed up correctly.
Any ideas??

 

[Johan Elzenga]

Don't do this. There is absolutely no reason to have the pictures of a backup in Lightroom. It does indeed mess up your catalog, and it is useless because they are hust copies. If and when you ever need the backup, the way to do this is to 'reconnect' the images. That means that you tell Lightroom to use the backup images rather than the originals, and that is trivial to do. Until then, Lightroom doesn't even need to know that a backup exists.