We have been thinking for a while to migrate all epics channels from acromag1 (10.0.1.33) to c3iocserver (10.0.1.36) which is rack mount with the latest supported ubuntu Debian.

Unfortunately, my first attempt failed and I tried to put everything back to the status quo but the docker instance on iocserver which was running PMC interface is not working. Here are the steps I took:

• I created a modified acromag.cmd file to be used in ioc4server with docker. The file is attached. All the running acromag cards and their db file addresses were added in this single file.
• I copied all the relevant db files to /home/modbus/db/ in the iocserver computer.
• I stopped the running docket container with NPMC and SPMC interface channels. I stopped AcromagBoot service on acromag1 and removed it from /etc/init/ (preserving the copy).
• I rebooted acromag1 for a clean start. No channels were running at this point.
• Then at iocserver, I ran:
  sudo docker run -dt --name AcromagChannels -v :/home/controls/modbus/acromag.cmd -v  :/home/modbus/db -p 5064:5064 -p 5065:5065 -p 5064:5064/udp -p 5065:5065/udp andrewwade/modbusepicsdocker
• This started a docker container but I couldn't see any channel from acromag1 using caget. So either the channels are not broadcasted properly or the modbus command file is not running properly.
• So, to go back to previous state, I stopped and removed container AcromagChannels and ran the previous IOCStart.cmd file with:
  sudo docker run -dt --name AcromagPMC -v :/home/controls/modbus/IOCStart.cmd -v  :/home/modbus/db -p 5064:5064 -p 5065:5065 -p 5064:5064/udp -p 5065:5065/udp andrewwade/modbusepicsdocker
• I put back the AcromagBoot.conf file in acromag1's /etc/init and rebooted acromag1 again.
• This brought back all the channels hosted by acromag1 but not the PMC interface channels from iocserver. So there is definitely some problem with the way I ran docker.

I couldn't debug remotely further for the cause of this problem. So the status is worse than I started. The PMC channels are not running and hence everything must be unlocked in the lab right now.

Edit Mon Mar 11 18:38:03 2019 (awade): crossed out Ubuntu added Debian

dbLoadDatabase("$(EPICS_ROOT)/modules/modbus/dbd/modbus.dbd")
modbus_registerRecordDeviceDriver(pdbbase)

# Use the following commands for TCP/IP
# drvAsynIPPortConfigure(const char *portName,
#                        const char *hostInfo,
#                        unsigned int priority,
#                        int noAutoConnect,
#                        int noProcessEos);
# Example: drvAsynIPPortConfigure("c3test1","10.0.0.42:502",0,0,1)