Ultimate -> Raw/Free Conversion

We need to go above 750 sensors but don’t have a budget since we didn’t realize we would need to go over 750 (coming from PRTG 500 sensor license). After I convert the core to Nagios and try activitating changes I receive license limitation restrictions. What is the current process for switching to raw/community?

CMK version: 2.4p38
OS version: 1.7.25

Error message: Started at: 06:01:47. Finished at: 06:01:48.
Error running automation call restart (exit code 1), error:
An error occurred: Error creating configuration: Trial period ended: ‘Activate changes’ is blocked
Your trial period has ended, and your license state is automatically converted to ‘Free’. In this license state, your maximum total service limit is 750 which you exceed with 751 services. Until you reduce the number of services, ‘Activate changes’ is blocked.
If you want to use Checkmk with all configured services, please enter the license details or purchase a license.

root@checkmk:~# omd config [redacted] show
ADMIN_MAIL: [redacted]
AGENT_RECEIVER: on
AGENT_RECEIVER_PORT: 8000
APACHE_MODE: own
APACHE_TCP_ADDR: 127.0.0.1
APACHE_TCP_PORT: 5000
AUTOMATION_HELPER: on
AUTOSTART: on
CORE: nagios
LIVEPROXYD: on
LIVESTATUS_TCP: off
MKEVENTD: on
MKEVENTD_SNMPTRAP: on
MKEVENTD_SYSLOG: on
MKEVENTD_SYSLOG_TCP: on
MULTISITE_AUTHORISATION: on
MULTISITE_COOKIE_AUTH: on
OPENTELEMETRY_COLLECTOR: off
OPENTELEMETRY_COLLECTOR_SELF_MONITORING_PORT: 14317
PIGGYBACK_HUB: off
PNP4NAGIOS: on
RABBITMQ_DIST_PORT: 25672
RABBITMQ_MANAGEMENT_PORT: 15671
RABBITMQ_ONLY_FROM: :: 0.0.0.0
RABBITMQ_PORT: 5672
TMPFS: on
TRACE_RECEIVE: off
TRACE_SEND: off

I don’t know, but maybe this old thread can help:

Install Checkmk Community at the same patch level. Run

omd stop
omd update

and select Checkmk Community as target for the downgrade. Then run

omd start

to start the site that now has been moved to Checkmk Community.

And also make sure that all enterprise/pro specific features are turned off before the update. → like liveproxyd and so on

it is documented there

Those steps don’t work for me.

OMD update only lets me downgrade from one CCE to another CCE version, which has the same limitation.

root@checkmk:~# omd update GSD ?
Saving temporary filesystem contents…OK
Unmounting temporary filesystem…OK
Cleaning up tmp directory…OK

                                                                       lqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqk
                                                                       x You are going to update the site GSD from        x
                                                                       x version 2.4.0p38.cce to version 2.4.0p35.cce.    x
                                                                       x This will include updating all of your           x
                                                                       x configuration files and merging changes in the   x
                                                                       x default files with changes made by you. In case  x
                                                                       x of conflicts your help will be needed.           x
                                                                       tqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqu
                                                                       x           <Update!>      < Abort >               x
                                                                       mqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqj

You need to install a 2.4.0p38.cre (or p39) first.
Go to:

Select the right OS distribution. Download. Install via apt.
Then when running omd version you should see the 2.4.0p39.cre being selected. Otherwise use omd setversion 2.4.0p39.cre.

Then you can update.

By the way: You are (down)-updating from 2.4.0p38.cce to version 2.4.0p35.cce → You just changed the patch release and used an older patch release of CCE, which I do not recommend in general. Don’t update to older versions.

They used a virtual appliance. I can only load the CCE images into the virtual appliance (It won’t accept any other file type). Are people that deployed with a virtual appliance unable, through any mechanism besides a full rebuild, to migrate to the community edition? The documentation simply doesn’t cover any sort of conversions with the virtual appliance or how to move off the virtual appliance, that I can find. I also don’t see a way that allows me to restore a CCE to a CRE (the versions won’t match).

The downgrade documentation seems very incomplete.

No - the easy solution would be a normal site backup of your currently running site.
Restore this backup to a normal Linux system with the same CMK version installed as before on the appliance (CEE but for your linux system). Then you can make the switch to CRE on this Linux machine. On a virtual or hardware appliance there it is no CRE package available.