[SOLVED] Buster SSD Setup

Hi, I installed Debian 10 yesterday & most things are running well thus far! I have an SSD and normally set the following for Debian 9:

1. fstab - add noatime for SSD partitions.

2. Enable TRIM for it using the provided example systemd services:
cp /usr/share/doc/util-linux/examples/fstrim.service /etc/systemd/system/
cp /usr/share/doc/util-linux/examples/fstrim.timer /etc/systemd/system/
systemctl enable fstrim.timer

3. Set the following udev rule tells the system to use the deadline scheduler for any non-rotation drives present:
echo -e 'ACTION=="add|change", KERNEL=="sd[a-z]", ATTR{queue/rotational}=="0", ATTR{queue/scheduler}="deadline"' > /etc/udev/rules.d/60-schedulers.rules

I've done the first step as normal, but the fstrim.* files don't exist in Buster.

I've found a README.Debian (in /usr/share/doc/util-linux/) that says:

Periodic fstrim for SSD disks ----------------------------- fstrim(8) is used on a mounted filesystem to discard blocks which are not in use by the filesystem. This is useful in particular for solid-state drives (SSDs). A systemd service and matching timer is available to periodically perform fstrim on relevant filesystems, but is *not* enabled by default. To enable it according to the default weekly cadence, just do the following as root: systemctl enable fstrim.timer

But no mention of copying the example fstrim.* files first. I've checked all of the files in the destination directory (/etc/systemd/system/) and can't see any filename or contents that refer to fstrim.

My question about step 2 is; is it now really as simple as just running the final command without first copying-in the two fstrim.* files?

I guess step three will be same as before as there's currently nothing else in the target directory, presumably safe to run the same command again.

Does anyone still have Debian 9 installed that could see how the README.Debian file I quoted looks like on it please?

I've now spotted the word "just" towards the end of what I quoted above, implying the previous process was more involved (i.e. the two copy steps I had to do in Debian 9). Hence, it likely is really as simple as it seems. Maybe the fstrim no longer needs those two files any more & it is baked into systemd some where or other.

Ah, I've risked it for a biscuit & just run the command:

root@debian:~# systemctl enable fstrim.timer
Created symlink /etc/systemd/system/timers.target.wants/fstrim.timer → /lib/systemd/system/fstrim.timer.

So, that looks like it is doing the necessary itself. Happy days!

Yeah, the proliferation of SSD's in consumer systems got the Debian team to already have the services part of the default install. You figured it out just before I was able to post that.

Thanks for confirming!

I've also run the third step & rebooted my PC & it hasn't gone up in flames yet, so I guess that's worked too. :P

Thanks.

thanks guys, i would not have thought to even look into it.
systemctl enable = success without prio cp's for me.