Experimental Physics and
Industrial Control System

Donny Domagoj Cosic via Tech-talk <tech-talk at aps.anl.gov> · Thu, 06 Jan 2022 23:36:39 +0100

Hi Yong,

Thank you very much for your quick response and thank you for creating

systemd-softioc and sharing it with the community. With your advice I

got it working. procServ was not successfully installed and naturally it

did not work. Once I installed procServ, everything works beautifully.

Thank you,
---
Donny Domagoj Cosic

Laboratory for Ion Beam Interactions
Ruđer Bošković Institute
Bijenička cesta 54 | HR-10 000 Zagreb | CROATIA
T: +385 1 4561 041 | @: dcosic at irb.hr | www.irb.hr

Dana 06.01.2022 17:45, Hu, Yong je napisao(la):

Hi Donny,

Could you try these and post your results?

1) Type “which procServ” to see if procServ is successful
installed;

2) Type “cat /etc/systemd/system/softioc-testIOC2.service” to see
the generated service file.

Generally speaking, the main purpose of the "generic" user account
'softioc' is about permission: let ‘softioc’ be the owner of your
IOC's directory as well as the owner of your IOC's process after the
IOC is started (you can try this to see IOC processes: ps -ef | grep
st.cmd). So, you should type “sudo manage-iocs start testIOC2”
under your personal account (or the ‘root’ account).

Cheers,

Yong

FROM: Tech-talk <tech-talk-bounces at aps.anl.gov> on behalf of
"tech-talk at aps.anl.gov" <tech-talk at aps.anl.gov>
 ORGANIZATION: Institut Ruđer Bošković
 REPLY-TO: Donny Domagoj Cosic <Donny.Domagoj.Cosic at irb.hr>
 DATE: Wednesday, January 5, 2022 at 3:31 PM
 TO: "tech-talk at aps.anl.gov" <tech-talk at aps.anl.gov>
 SUBJECT: Start IOC automatically at boot

Happy new year!

I am trying to install systemd-softioc (procServ) as outlines here

https://github.com/NSLS-II/systemd-softioc [1]. I followed the
instructions

and successfully installed it on my Raspberry Pi. I installed the IOC

and can manually start the softioc, however I am not able to start the

IOC using manage-iocs. I get the following output:

softioc@raspberrypi:/epics/iocs/testIOC2$ sudo manage-iocs start

testIOC2

Starting the IOC 'testIOC2' ...

Failed to start the IOC 'testIOC2'; type 'sudo journalctl -xe' for

details.

Below is my config file and output from the journalctl

Config

---------

NAME=testIOC2

PORT=4053

HOST=raspberrypi

USER=softioc

CHDIR="/epics/iocs/testIOC2/iocBoot/ioctestIOC2"

EXEC="$CHDIR/st.cmd"

Output from journalctl

-------------------------

Jan 05 21:11:29 raspberrypi sudo[13371]: softioc : TTY=pts/0 ;

PWD=/epics/iocs/testIOC2 ; USER=root ; COMMAND=/usr/bin/manage-iocs

install testIOC2

Jan 05 21:11:29 raspberrypi sudo[13371]: pam_unix(sudo:session):
session

opened for user root by (uid=0)

Jan 05 21:11:29 raspberrypi sudo[13371]: pam_unix(sudo:session):
session

closed for user root

Jan 05 21:11:43 raspberrypi sudo[13423]: softioc : TTY=pts/0 ;

PWD=/epics/iocs/testIOC2 ; USER=root ; COMMAND=/usr/bin/manage-iocs

start testIOC2

Jan 05 21:11:43 raspberrypi sudo[13423]: pam_unix(sudo:session):
session

opened for user root by (uid=0)

Jan 05 21:11:43 raspberrypi systemd[1]: Reloading.

Jan 05 21:11:43 raspberrypi systemd[1]: [email protected]:

Current command vanished from the unit file, execution of the command

list won't be resume

Jan 05 21:11:43 raspberrypi systemd[1]: plexmediaserver.service:
Current

command vanished from the unit file, execution of the command list
won't

be resumed.

Jan 05 21:11:44 raspberrypi systemd[1]: Condition check resulted in
IOC

testIOC2 via procServ being skipped.

-- Subject: A start job for unit softioc-testIOC2.service has finished

successfully

-- Defined-By: systemd

-- Support:
https://urldefense.com/v3/__https://www.debian.org/support__;!!P4SdNyxKAPE!TP0CWTCKflbs_jaxGE76jgOrTY2iKe98ZI6VnTvLdIlbfMgxQBelzpZthmKH$
[2]

--

-- A start job for unit softioc-testIOC2.service has finished

successfully.

--

-- The job identifier is 1803.

Jan 05 21:11:45 raspberrypi sudo[13423]: pam_unix(sudo:session):
session

closed for user root

Jan 05 21:11:54 raspberrypi sudo[13487]: softioc : TTY=pts/0 ;

PWD=/epics/iocs/testIOC2 ; USER=root ; COMMAND=/usr/bin/journalctl -xe

Jan 05 21:11:54 raspberrypi sudo[13487]: pam_unix(sudo:session):
session

opened for user root by (uid=0)

The softioc testIOC2 contains a few records which get updated from a

python script. Which brings me to my next questions. Is there a way to

automatically start the python script with the ioc?

Thank you very much for your help,

Regards

--

Donny Domagoj Cosic

Laboratory for Ion Beam Interactions

Ruđer Bošković Institute

Bijenička cesta 54 | HR-10 000 Zagreb | CROATIA

T: +385 1 4561 041 | @: dcosic at irb.hr |
https://urldefense.com/v3/__http://www.irb.hr__;!!P4SdNyxKAPE!TP0CWTCKflbs_jaxGE76jgOrTY2iKe98ZI6VnTvLdIlbfMgxQBelzvOwVQv4$
[3]

Links:
------
[1] https://github.com/NSLS-II/systemd-softioc
[2]
https://urldefense.com/v3/__https:/www.debian.org/support__;!!P4SdNyxKAPE!TP0CWTCKflbs_jaxGE76jgOrTY2iKe98ZI6VnTvLdIlbfMgxQBelzpZthmKH$
[3]
https://urldefense.com/v3/__http:/www.irb.hr__;!!P4SdNyxKAPE!TP0CWTCKflbs_jaxGE76jgOrTY2iKe98ZI6VnTvLdIlbfMgxQBelzvOwVQv4$

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System