On the old iMac I have been working with LR6 and Photos on a NAS. Now I bought a new iMac and the upgrade from LR 5 to LR 6.I have already installed LR 6 on the new iMac (empty installation). What's the best procedure to migrate from the old to the new world. PS: I have a lot of folders, keywords and "Sammlungen". Every thing should remain as it is. In future photos will be stored on the iMac (not any longer on the NAS). Thanks for your help.
In Lightroom 6, use the menu command File->Open Catalog and select the Lightroom 5 catalog file.
Thanks for the answer. Photos have been "imported" after I copied the file "Lightroom 5 Catalog.lrcat" (from the old Mac). Unfortunately without they folders? There are no folders in LR. What went wrong? Only Sammlungen are there.
The instructions I gave did not involve importing. If you imported the photos, you have done the wrong thing.
Can you show us a screen capture of the catalog as it exists now?