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Werk #22150: omd cleanup: Keep global files when the last version is removed

Component Site management
Title omd cleanup: Keep global files when the last version is removed
Date Sep 16, 2026
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
3.0.0b1
Not yet released
Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

If no site was installed on the system, omd cleanup used to remove a set of global files as well: the whole /opt/omd tree, the /omd symlink, the system Apache configuration zzz_omd.conf, /etc/init.d/omd, /usr/bin/omd and the omd group.

Since Werk #13201, this step is no longer performed: omd leaves the default version, and thus the global cleanup step only takes place under very narrow circumstances. The symlink of the default version must be broken.

In other words, the step only ran on installations that were already in an inconsistent state, which is exactly where deleting files is not safe. Customer have asked us to remove this step in the past, and due to Werk #13201 they likely assume we already did.

The global cleanup has now been removed entirely. Note that the package manager still takes care of these files once the last version is uninstalled, i.e., via

rpm -e check-mk-EDITION-VERSION

on RPM-based distributions, and via

apt-get purge check-mk-EDITION-VERSION

on Debian-based distributions.

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