Any car before electronic ignition became more popular. My first two cars (purchased already old) had them and I’m old but not ancient. If you had a mass production car built in the 1970s or earlier you probably had this in the distributor. The points eroded due to the high voltages and would get a pitted surface, causing problems with ignition timing and that could be bad. It’s a wear item, so file them to dress them up a bit until you can’t any more. Then replace them. But when you file or replace you’ve got to adjust the points and check the timing (edit:) dwell again.

Both electronic ignition and later the ECU (plus developments in materials science) improved the lifespan of spark plugs too. This is why there were so many tune-up shops in the old days. You needed to regularly check the plugs, points, timing, oil and filters. Plus all the other things that didn’t last or remain in adjustment as long back then as they do now.

Just tried this on a recent Trixie amd64 install. locate isn’t installed by default, but there is a locate/stable 4.10.0-3 package and it installs just fine for me.

sudo apt update
sudo apt install locate

I’m using Mikrotik and Ruckus. Would recommend both. I like that they are both at the level of reliability that I don’t think about them at all for months at a time. I update quarterly or less and they require no other attention from me. They also work well with my centralized data collection and alerting via LibreNMS.

OPNSense would be high on my list of alternatives when I reevaluate next time. And all Mikrotik would be a good option for me as well. Their Wi-Fi gear is not as strong as Ruckus or Ubiquiti, but they are super solid.

The Unifi ecosystem is a bit too centralized for me. I don’t want to create an account in order to use the hardware.

Is it possible that you didn’t enable snapshots during installation of TW, and then turned it on later?

That seems to be a common explanation on the openSUSE forum when .snapshots is missing from fstab (found by searching for the error you are hitting). There are some threads with workarounds. Basically, mount the .snapshots subvol manually, re-try the rollback and then add .snapshots to fstab so it works in the future.