NFS mounts not happening at boot in 18.04 or 18.10

I'm trying to set up a couple of NFS mounts to automatically mount at boot. I'm not new to this; I did this on Solaris in 1985.

Here's what I have in /etc/fstab:

iomega:/nfs/Music   /music  nfs rw,auto,user    0   0

It doesn't mount at boot and leaves this message in syslog:

Mount process exited, code=exited status=32

It didn't work in 18.04, and I just upgraded today to 18.10 and it still doesn't work. If I do a mount -a after boot, that fs mounts normally.I've tried several suggestions about adding systemd-specific parameters to the mount options, but none of them worked.

This is basic functionality. It should JFW. Can anybody tell me what the exit code 32 means and how to make this work?