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Good day IBM Developement team and Sebastian Wilk,
Thank you for your comments, input and improvements related to the upgrade procedure.
I'm glad to see that the upgrade procedure from MQ 9.2.1 doesn't require uninstall anymore.
"From IBM® MQ 9.2.1, you can upgrade an IBM MQ installation on Linux® systems without uninstalling the earlier version."
https://www.ibm.com/support/knowledgecenter/bg/SSFKSJ_9.2.0/com.ibm.mq.mig.doc/q135200_.html
Kind regards,
Ikram Abasov
We will be considering this for a future version of MQ
Hey Ikram Abasov,
we ran into the exact same issue when trying to update our MQ clients on Linux to a newer version.
The solution IBM Support gave us is not satisfying at all, but less of a headache than uninstalling before installing a newer version.
Instead of downloading the baseclient package for the Version you want to upgrade to, download the fixpack instead.
For the sake of simplicity I'll provide our example:
We started testing MQ Clients on linuxmachines with Version 9.1.0.1. For that we downloaded the base package(v 9.1.0.1) and installed it.
We then tried to upgrade to Version 9.1.0.4 using the basepackage (v 9.1.0.4) and yum update.
This ends up with the error that there is an existing Installation.
We were then pointed to the fixpack 9.1.0.4 (https://www.ibm.com/support/pages/downloading-ibm-mq-version-9104)
Despite fix central also being a massive pain in the [Deleted], using the fixpack you can "overinstall" your old Version.
The fixpack will also have the character "U" in the Name of the files after you extracted it.
We could then use yum install (not update) to upgrade to a newer version without uninstalling the old version.
TL;DR
Have a baseinstallation
Download fixpack
yum install (NOT update) the fixpack
Done
It is beyond me why the basic concept of updateable packages is not there, but for now this is what we have to deal with. Hope this helps.
I left my vote here, since it causes alot of overhead to download separate packages with different content rather than just getting the new clientbase and roll with it.