Ok lets face it I love Lightroom and use it all the time, when I develop my shots, been using it for about a year now. My problem was that way back when I first bought and installed it I did it on my laptop trough a issci drive on my nas, not the brightest idea in the world but it's been working, My problem was that I have a really good desktop pc with a huge 23" monitor which would be awesome to work on at times.
So after searching the net for a while I found that the easiest solution would be to invest in a external hard drive, so I did and it arrived at my house yesterday, and I was ready to get into business, and moving the catalogue, files and folders to the new drive.
Ok so here is the challenge how do you move 1 TB from a network attached drive to a external hard drive without risking any data loss?
I was thinking a log time about letting Lightroom handle the file transfer, but if i did it that way and something went wrong I wouldn't have any backup.
Here is how I managed to handle the move:
1. If you are working on your laptop and like I did had your photos on a external nas, do yourself a favor and connect a network cable to speed the transfer up.
2. Prepare your new external drive, most are formatted and are just plug and play. Test your drive on both computers you want to work with Lightroom on, and make sure when attached they have the same drive letter. (If the drive letter does not match fix it inside computer administration).
3. Copy all you image files and folders to the new external hard drive. It is important you copy the files and don't cut them, just in case that something goes wrong.
4. Copy your Lightroom catalogue .lrcat, Lightroom-2 Previews.lrdata folder & Lightroom-2 Smart Previews.lrdata folder to the new drive. Here it is also important you copy the files and don't cut them, just in case that something goes wrong.
5. When all the file transfers are done open your external drive and locate your catalogue. Now DON'T PANIC when you look at your folders inside Lightroom you will get a question mark saying that Lightroom cant locate your images. Now you just right click the top folder and press "locate missing folder" and navigate to you image folder on your new external drive.
That's it now when you need to edit your photos on either your laptop or desktop you just attach your external drive and navigate to the Lightroom catalogue on the drive and double click it from there,
Remember to read how to move your Lightroom preset folder, othervise your lightroom settings wont be transfered between computers. Read here