Step 6
At this point, I needed to quit Lightroom or switch catalogs, so that I could disconnect the removable hard drive from the laptop and reconnect it to the iMac computer. On the iMac, I opened Lightroom, running the original master catalog, and chose File > Import from Catalog (see Figure 8). I selected the laptop’s exported catalog and clicked Choose. In the Import from Catalog dialog box, I chose to replace the catalog contents, using the Metadata and Develop Settings option only (see Figure 9).