LR missing folders
I have an iMac at home where I run LR classic and catalog and images are backed up to a 2TB Lacie external drive. I have an old Mac mini that I have hooked up at another place I spend a lot of time at. I brought the external drive with me this time but I cannot see folders or work I have done since 2016 which is about the time I got the iMac. Am I wrong assuming that the catalog/file info and images are on the external drive. LR seems to be reading something saved on or prior to 2016. How can I see my files on both computers as I move back and forth between locations.