Hi Bernhard
There are a number of things you can do: the simplest -
Increase the number of kernel packages that are retained:
In /etc/dnf/dnf.conf change installonly_limit=3 to some higher number.
Then manually delete kernel packages that are intermediate.
That way you keep the working version *and* get the updates so you can
try them as they come in.
There used to be a plugin to lock dnf updates to a specific version, but
I think that disappeared a few years ago.
You can try `dnf mark install kernel-VERSION` which *should* hold that
package version on the system, but that hasn't always worked for me.
There is another simple approach - run the update while booted in to the
kernel you want to hold. dnf wont remove the running kernel, and will
uninstall newer versions to stay within the installonly_limit you have
set.
Some combination of these should allow you to hold (some) older kernel
version while still allowing you to try updated kernels.
unman