Thanks everyone, but I think our situations are a bit different. I'm not a novice at editing /etc/fstab, and what I have there is working just fine to get the 11 shares from my NAS mounted to /mnt/. Problem is, every time I start the system or reboot, I need to start a terminal and use the mount -a command to get access to them.
There was a time, long ago, when I could use an options field like this: noauto,x-systemd.automount in each of the lines in /etc/fstab to automatically mount them all using systemd, and life was good. Whenever the system was started, those shares would automatically mount and I could access them immediately.
But then some changes were made to Solus, and the only way I could mount those shares was to go back to the old options field, which was (and still is) simply: defaults. Again, this mounts those shares reliably, but it requires manual intervention, which is what I'm trying to avoid.
For quite a while I was hoping that it was only a temporary problem, to solve some kind of a conflict, and we'd eventually enable the systemd method again, but that's never happened.
A kind person gave me an example of a type of file I could create, one for each of those entries, that would get systemd to load the shares, but creating 11 of those files and getting them in the right location, and troubleshooting the inevitable issues due to my system's being different than the one in his example sounded like more trouble than simply using mount -a after every restart, so that's what I've been doing ever since.
I'm still hoping that some day I'll be able to use that set of options in /etc/fstab that invokes systemd to load the shares once again, or maybe a different invocation that will do the same thing via systemd.
