How to install Client SDK and Informix server inside one VM?

To be clear... My goal is to install Connection Manager and Informix Server inside one VM.

I installed Informix 14.10 and Informix Client SDK. Informix server is installed in /opt/ibm/infomix and Client SDKin /opt/ibm/csdk. The reason for this is, that when I installed both to /opt/ibm/informix, the Client SDK I installed later, overwrote some files installed by the Informix server which caused some issues with the server.
I found somewhere it is better to install them separately (in different locations).

Now I have a different issue. I set the INFORMIXDIR to /opt/ibm/informix, but then, when I try to start the oncmsm, I see the following error.

[informix@db21 ~]# oncmsm -h
Failed to load error messages, please check your INFORMIXDIR

I found, that this may be cause by the msgfile in the bin directory.

[informix@db21 csdk]$ export PATH=$PATH:/opt/ibm/csdk/bin/
[informix@db21 csdk]$ msgfile 
/opt/ibm/informix/msg/en_us/0333/
[informix@db21 csdk]$ oncmsm -h
Failed to load error messages, please check your INFORMIXDIR
[informix@db21 csdk]$ /opt/ibm/csdk/bin/msgfile 
    
[informix@db21 csdk]$ /opt/ibm/informix/bin/msgfile
/opt/ibm/informix/msg/en_us/0333/
[informix@db21 csdk]$ export INFORMIXDIR="/opt/ibm/informix"
[informix@db21 csdk]$ /opt/ibm/informix/bin/msgfile
/opt/ibm/informix/msg/en_us/0333/
[informix@db21 csdk]$ /opt/ibm/csdk/bin/msgfile 
 
[informix@db21 csdk]$ export INFORMIXDIR="/opt/ibm/csdk"
[informix@db21 csdk]$ /opt/ibm/csdk/bin/msgfile 
/opt/ibm/csdk/msg/en_us/0333/
[informix@db21 csdk]$ /opt/ibm/informix/bin/msgfile
/usr/informix/msg/english/
[informix@db21 csdk]$

It looks like it should work when I change the $INFORMIXDIR to the csdk folder, but then...

[informix@db21 csdk]$ onstat -
Unable to read $INFORMIXDIR (/usr/informix).

Regarding the documentation here, it should be possible to install both, Client SDK and Server under one user (informix).
Do you please know what is the issue here and how to make it works?

Solution

Informix version 14.10 was installed with SDK version 4.10. For v14.10 it is necessary to use Client SDK version 4.50.