[CentOS] yum update (first in a long time) - /var/log/dovecot no longer used

Fri May 6 13:12:02 UTC 2016
James B. Byrne <byrnejb at harte-lyne.ca>

On Fri, May 6, 2016 04:36, John Hodrien wrote:
> On Fri, 6 May 2016, Gary Stainburn wrote:
>> What I didn't expect, and what really threw me was that this has
>> been implemented via a simply 'yum update' of an existing system,
>> not at a major release level.
> Something like RHEL is stuck in a trap here.  Either they never
> change a default post-install (lots of rpmnew or deliberately
> not introducing new behaviours), or they bring in defaults as
> you update (to some extent doing things like rpmsave).  Some
> people would complain whichever option they chose.

Or have packagers divide configuration files into system and local
with local overriding system. Then restrict software updates such that
they modify only system configs leaving locals alone.  That way new
things can be added with old things are left as they are. Some
software already behaves like this.  There is no evident technical
reason why most of the rest could not as well.

If an update is such that old things cannot be left alone then that is
sufficient to require an rpmnew and a warning to the installer that
manual intervention is required to complete the update. In fact,
anything of that nature would benefit from requiring a special switch
to install so that 'yum update' would not break a running system.

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James B. Byrne                mailto:ByrneJB at Harte-Lyne.ca
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