systemd startup script fails

v3ct0r · 03-03-2014, 09:03 PM

Hey guys, recently I tried to run an simple on line script when booting up on my archlinux laptop. The script is

Code:

demsg -D

, and the .service file is looks like

Code:

[Unit]
Description=My script for disable error message in console

[Service]
ExecStart=/usr/bin/dmesg_D

[Install]
WantedBy=getty.target

I need this becasue my new laptop yoga2 keeps output an error message and I cannot fix it, as what Wiki does, use the script to disable the output. But somehow it fails to run, the error message is looks like

Code:

isable_print_message.service - My script for disable error message in console
   Loaded: loaded (/etc/systemd/system/disable_print_message.service; enabled)
   Active: failed (Result: exit-code) since Tue 2014-03-04 10:18:38 CST; 40min ago
  Process: 228 ExecStart=/usr/bin/dmesg_D (code=exited, status=203/EXEC)
 Main PID: 228 (code=exited, status=203/EXEC)
   CGroup: /system.slice/disable_print_message.service

Mar 04 10:18:38 localhost systemd[1]: Starting My script for disable error message in console...
Mar 04 10:18:38 localhost systemd[1]: Started My script for disable error message in console.
Mar 04 10:18:38 localhost systemd[1]: disable_print_message.service: main process exited, code=exited, status=203/EXEC
Mar 04 10:18:38 localhost systemd[1]: Unit disable_print_message.service entered failed state.

Truly I dont know why and I cant find any information here.
So guys, where am I wrong? Any helps? thanks verymuch

grail · 03-03-2014, 09:30 PM

Well I guess my first question would be which example you provided has the correct command?

Example 1: demsg -D

Example 2: ExecStart=/usr/bin/dmesg_D

Now does the spelling matter or not?

v3ct0r · 03-03-2014, 10:29 PM

Quote:

Originally Posted by grail

Well I guess my first question would be which example you provided has the correct command?

Example 1: demsg -D

Example 2: ExecStart=/usr/bin/dmesg_D

Now does the spelling matter or not?

er, actually not, the first demsg was truly a speeling error which I just typed in web browser, but the latter two "config details" were paste here, what is truly in /usr/bin/dmesg_D is

Code:

dmesg -D

.
Any ideas?

grail · 03-03-2014, 11:37 PM

So dmesg_D is a script? Are you able to show its contents?

I mean ultimately the message is very clear, something has attempted to execute and failed.
Does the following work:

Code:

$ /usr/bin/dmesg_D

And if so, what is its' exit code:

Code:

$ echo $?

v3ct0r · 03-04-2014, 02:38 AM

Quote:

Originally Posted by grail

So dmesg_D is a script? Are you able to show its contents?

I mean ultimately the message is very clear, something has attempted to execute and failed.
Does the following work:

Code:

$ /usr/bin/dmesg_D

And if so, what is its' exit code:

Code:

$ echo $?

thanks for your help, but the dmesg_D script return 0, so the script is correct itself, which means that it was excuted at wrong time(lucky guess)?

grail · 03-04-2014, 08:15 AM

Well the error message says that the script is erroring. So if it does not error on normal running then I would guess that something that it requires is not available.
Hence you would need to find out what it requires to be started and place the appropriate option in the Unit section, something like a Wants or After (maybe both)