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Fusion 4 Incompatible with Installed Version
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In order to upgrade to Nagios Fusion 4, you'll first need to upgrade
your version of Nagios Fusion to 2014r1.1.
You can find previous versions of Nagios Fusion here:
https://assets.nagios.com/downloads/nagiosfusion/versions.php
And don't you can reach out for help at the Nagios support forum:
https://support.nagios.com/forum/
This is my var/fusionversion that seems to be the one reporting the version. For som reason it is fairly blank and says "release=00". I tried manually changing this file to see what happened during upgrade. The installer finished, but everything broke, so I rolled back.
###################################
# DO NOT DELETE THIS FILE!
# Nagios Fusion version information
###################################
full=..
major=
minor=.
releasedate=2023-10-22
release=00
I attempted to alter the release field, because that is what was blocking the installer, but I wasn't sure about format or anything, so I just increased it to 40 or something.
I rolled back, so no issues, was just "hoping" for a quick workaround.
Why does it say that I'm not on v4 when I clearly am?
Since the var/fusionversion file appears to be missing some of the version information, the upgrade script is unable to properly do the update as it thinks that fusion is version 0 at the moment.
Make sure you have a backup, set that var/fusionversion file to reflect the following, and attempt another upgrade.
###################################
# DO NOT DELETE THIS FILE!
# Nagios Fusion version information
###################################
full=4.2.0
major=4
minor=2.0
releasedate=2023-10-22
release=4200
If you are still having issues, feel free to reach out!
Okay, it seemingly worked, but after the upgrade, the dashlet doesn't display any metrics. The dashlets are all there, and the fused servers are all there. Test connection works.
However, the "latest" dashlets are blank, and summary just shows 0 for all fields, etc.
The level of support this requires may exceed what can be expected on the forum, and to get further assistance we would suggest you open a support case on the answer hub with the link below.