Experimental Physics and
Industrial Control System



Hi Mark,

Thank you for the speedy response! Glad to hear it is probably not the installation. Here is the requested output:

$ printenv | grep EPICS
EPICS_BASE=/home/specadm/EPICS/epics-base
PATH=/home/specadm/EPICS/epics-base/bin/linux-x86_64:/usr/bin:/usr/lib64/qt-3.3/bin:/home/specadm/perl5/bin:/usr/condabin:/usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/home/specadm/.local/bin:/home/specadm/bin
EPICS_HOST_ARCH=linux-x86_64

Thank you,
Brandon

On Tue, Jun 13, 2023 at 4:37 PM Mark Rivers <rivers at cars.uchicago.edu> wrote:

Hi Brandon,

• Has anyone had any luck installing EPICS on CentOS 7?
  

Yes, I have been using EPICS on Centos 7 for many years.  I am currently using it on Centos 6, Centos 7, Centos 8 Stream, and Centos 9 Stream.

• When I try to "caget temperature:water", it responds with "Channel connect timed out: 'temperature:water' not found.". 
• I'm guessing this is because it isn't installed correctly. 

I think it is unlikely that the problem is with the installation.

• Is it possible that the install is okay and there is a configuration issue preventing the caget from talking to the EPICS server?
  

Yes, that is more likely.  Please send the output of the following in the console window running caget:

printenv | grep EPICS

And send the output of the following at the IOC prompt on the EPICS server:

epicsPrtEnvParams

Mark

---

From: Tech-talk <tech-talk-bounces at aps.anl.gov> on behalf of Brandon Gunn via Tech-talk <tech-talk at aps.anl.gov>
Sent: Tuesday, June 13, 2023 6:27 PM
To: tech-talk at aps.anl.gov <tech-talk at aps.anl.gov>
Subject: Trying to install EPICS on CentOS 7

 

Hello,

Has anyone had any luck installing EPICS on CentOS 7? Of the required packages for CentOS 8, I can install all but one (gcc-toolset-8-make) and there is no powertools for config-manager. It throws some errors but ultimately looks like it installs, but the basic tutorial does not work. When I try to "caget temperature:water", it responds with "Channel connect timed out: 'temperature:water' not found.". I'm guessing this is because it isn't installed correctly. Is it possible that the install is okay and there is a configuration issue preventing the caget from talking to the EPICS server?

Thank you,
Brandon