As per the instructions, it said you didn't need to create the datasets. Instead, that the script will create the directories. I just want to get it up and running first before structuring it fully.You shouldn’t include the photoprism part in the path. Try /mnt/Nikin_ZFS
I’m assuming you have created a dataset at /mnt/Nikin_ZFS/photoprism?
I will change the path part and try again and report back here.