As a preliminary matter, smbclient -U user -L //ip_address prompts me for my password and properly gives me a proper list of share names, as expected.
However, when using the following fstab entry, it fails to mount the drive and drops me into emergency mode on boot. (If I had not half mangled my Pi six different times already trying to learn things, this would be much more frightening.)
Should I be creating my mounts in /mnt/? If so, what command do I do that with? sudo mkdir, or do I need to set special permission?
What do I need to modify in the fstab to make this work? The goal is to either have mounted or make mountable a target directory for backups from the Pi to the NAS.
Is the UID the UID of my user on the Raspberry Pi, or the remote $USER?