SOLVED - hddtemp config issue

zshlhuppe · 2018-06-20 14:16:47

I am trying to setup hddtemp following the instuctions here:

https://wiki.archlinux.org/index.php/Hd … fault_disk

More specifically, I want to add my RAID array to the default config of just /dev/sda.

The instructions on the wiki page are to run:

 $ sudo systemctl edit hddtemp.service

I then add this:

ExecStart=/usr/bin/hddtemp /dev/sda /dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf

If I add either of these I get an error when restarting the service:

[Service]

ExecStart=

I then restarted the service by running:

$ sudo systemctl restart hddtemp.service

I got no errors. However when I tried running:

$ sudo suystemctl status hddtemp.service

I only got the default configuation. Next I tried rebooting but the system locked up. I had to boot the install media and delete the override file.

I am new to the "edit unit" feature of Systemd so I am prolly doing it wrong.

Any help is appreciated.

Last edited by zshlhuppe (2018-06-21 04:04:35)

zshlhuppe · 2018-06-20 14:36:46

Update - This what I am seeing:

$ sudo systemctl status hddtemp.service

● hddtemp.service - Hard drive temperature monitor daemon
Loaded: loaded (/usr/lib/systemd/system/hddtemp.service; enabled; vendor preset: disabled)
Drop-In: /etc/systemd/system/hddtemp.service.d
└─override.conf
Active: active (running) since Wed 2018-06-20 09:59:51 EDT; 32min ago
Main PID: 13068 (hddtemp)
Tasks: 1 (limit: 4915)
Memory: 700.0K
CGroup: /system.slice/hddtemp.serv
Jun 20 10:25:11 Archie systemd[1]: /etc/systemd/system/hddtemp.service.d/override.conf:1: Assignment outside of section. Ignoring.ice
└─13068 /usr/bin/hddtemp -dF /dev/sda
Jun 20 09:59:51 Archie systemd[1]: Started Hard drive temperature monitor daemon.
Jun 20 10:25:07 Archie systemd[1]: /etc/systemd/system/hddtemp.service.d/override.conf:1: Assignment outside of section. Ignoring.

$ sudo hddtemp /dev/sda /dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf

/dev/sda: WDC WDS250G2B0A-00SM50: 31°C
/dev/sdb: WDC WD10EZEX-00BN5A0: 29°C
/dev/sdc: WDC WD10EZEX-22BN5A0: 30°C
/dev/sdd: WDC WD10EZEX-75M2NA0: 30°C
/dev/sde: WDC WD10EZEX-22BN5A0: 29°C
/dev/sdf: WDC WD10EZEX-08WN4A0: 31°C

Last edited by zshlhuppe (2018-06-20 14:58:43)

V1del · 2018-06-20 15:54:15

What does your override conf look like now? It has to look like in the wiki article, verbatim, empty ExecStart= as well as filled ExecStart= and all.

zshlhuppe · 2018-06-21 04:26:48

I tried to do it verbatim but I kept getting errors. Then I looked closer at the "status" screen:

● hddtemp.service - Hard drive temperature monitor daemon
Loaded: loaded (/usr/lib/systemd/system/hddtemp.service; enabled; vendor preset: disabled)
Active: active (running) since Thu 2018-06-21 00:03:20 EDT; 4min 54s ago
Main PID: 500 (hddtemp)
Tasks: 1 (limit: 4915)
Memory: 2.4M
CGroup: /system.slice/hddtemp.service
└─500 /usr/bin/hddtemp -dF /dev/sda
Jun 21 00:03:20 Archie systemd[1]: Started Hard drive temperature monitor daemon.

The "Loaded" line gave me the answer. I fired up emacs and edited the config file:

$ sudo emacs /usr/systemd/system/hddtemp.service

[Unit]
Description=Hard drive temperature monitor daemon
[Service]
ExecStart=/usr/bin/hddtemp -dF /dev/sda
[Install]
WantedBy=multi-user.target

I then edited the "ExecStart" line:

[Unit]
Description=Hard drive temperature monitor daemon
[Service]
ExecStart=/usr/bin/hddtemp -dF /dev/sda /dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf
[Install]
WantedBy=multi-user.target

After that it was a simple matter of

$ sudo systemctl daemon-reload

Followed by

sudo systemctl restart hddtemp.service

And finally

$ sudo sytemctl status hddtemp.service

Voila!

● hddtemp.service - Hard drive temperature monitor daemon
Loaded: loaded (/usr/lib/systemd/system/hddtemp.service; enabled; vendor preset: disabled)
Active: active (running) since Thu 2018-06-21 00:03:20 EDT; 4min 54s ago
Main PID: 500 (hddtemp)
Tasks: 1 (limit: 4915)
Memory: 2.4M
CGroup: /system.slice/hddtemp.service
└─500 /usr/bin/hddtemp -dF /dev/sda /dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf
Jun 21 00:03:20 Archie systemd[1]: Started Hard drive temperature monitor daemon.

I may very well have been doing it wrong when trying to follow the ArchWiki. In fact, it may have been a much better idea to copy the contents of the original config file to create the override file, and added my changes there.

Thanks!

seth · 2018-06-21 05:59:18

That change will get overridden w/ the next update.
If the override does indeed not work (for whatever reason), rather replace the /etc/systemd/system/multi-user.target.wants/hddtemp.service symlink w/ a custom file or (better) derive your custom /usr/lib/systemd/system/hddtemp_raid.service and enable that instead of the stock hddtemp.service.

zshlhuppe · 2018-06-21 07:46:32

I got your suggestion to work nicely. However, when I rebooted my system it froze. I was forced to boot from an install CD and restore the default hddtemp configuration. After that my system booted fine.

It looks to me like I will just have to live with editing the original config file. In the grand scheme of things it's a minor inconvenience. I will tinker with it as I learn my way around systemd and see what happens.

Thanks!

seth · 2018-06-21 10:17:34

Are you sure the tampered hddtemp.service doesn't cause similar "freezes" or this is related at all? It really should not matter how the service is named.

zshlhuppe · 2018-06-21 12:37:09

Unfortunately I don't have any log data from that attempted boot. I am digging around in journalctl with no success. The package in question is a beta and has no facilities for warning me or taking action. At least not yet. The command I am using in my "ExecStart" string works from the command line so I am confident about my changes. I will use this as an opportunity to learn how to make a timer service to monitor my drives and take action of some sort. This service is important to me because I live in a hot place and my system is at risk of overheating with all the drives I have packed in it.

I am building a test system that I can use for these kinds of tinkerings.

Thank you again.

Len Huppe

Last edited by zshlhuppe (2018-06-21 12:38:01)

ewaller · 2018-06-21 14:15:55

On a side note, rather than running emacs with root permissions, can I suggest using tramp mode from the cli: emacs /sudo::/usr/systemd/system/hddtemp.service
It will run as you, but will ask for credentials for that file as the buffer opens. Given the complexity and versatility of emacs, it makes me feel a little safer not to run the whole thing with elevated privileged. And, your user configuration will work as expected.

zshlhuppe · 2018-06-21 15:15:12

I had wondered how to do that but never looked into it.

I am in your debt, Sir.

Thanks!

linuxninja · 2018-12-25 08:56:43

From your original post, I do not think you followed the directions correctly, and you didn't post the final contents of your /etc/systemd/system/hddtemp.service.d/override.conf when requested. This would have led to the proper solution, I think.

I attempted to duplicate the WIKI article instructions, since like you, I have multiple drives.

# systemctl edit hddtemp.service

Add the following content to the editor:

[Service]
ExecStart=
ExecStart=/usr/bin/hddtemp -dF /dev/sda /dev/sdb /dev/sdc

Exit and Save

# systemctl daemon-reload
# systemctl enable hddtemp.service
# systemctl start hddtemp.service

I am able to see that the service is running successfully.

$ telnet localhost 7634
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
|/dev/sda|OCZ-VERTEX3|30|C||/dev/sdb|ST31000528AS|27|C||/dev/sdc|ST31000528AS|25|C|

Arch Linux

#1 2018-06-20 14:16:47

SOLVED - hddtemp config issue

#2 2018-06-20 14:36:46

Re: SOLVED - hddtemp config issue

#3 2018-06-20 15:54:15

Re: SOLVED - hddtemp config issue

#4 2018-06-21 04:26:48

Re: SOLVED - hddtemp config issue

#5 2018-06-21 05:59:18

Re: SOLVED - hddtemp config issue

#6 2018-06-21 07:46:32

Re: SOLVED - hddtemp config issue

#7 2018-06-21 10:17:34

Re: SOLVED - hddtemp config issue

#8 2018-06-21 12:37:09

Re: SOLVED - hddtemp config issue

#9 2018-06-21 14:15:55

Re: SOLVED - hddtemp config issue

#10 2018-06-21 15:15:12

Re: SOLVED - hddtemp config issue

#11 2018-12-25 08:56:43

Re: SOLVED - hddtemp config issue

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