On Mon, 25 Aug 2025 at 22:23, Samuel Plavec <[email protected]> wrote:

> Thanks. This clears up my misunderstanding; I wrongly thought that the
> removal of /etc/sysctl.conf (incl. if changed) during upgrade was
> deliberate, which would imply that it wasn't intended to be used
> anymore.
>
It's actually a little trickier than that.
sysctl, which is part of procps, does read /etc/sysctl.conf

systemd-sysctl does not read that file.

sysctl.conf.5, part of procps, mentions this file and also that
systemd-sysctl doesn't read it.

The symlink from /etc/sysctl.conf got removed because the configuration
part moved to another package.

So either:
The upgrade notes need to mention to move the file; or
Some package, possibly procps, needs to detect a changed configuration file
and move it to the correct location.

 - Craig

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